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17 (seventeen) is the
natural number In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country"). Numbers used for counting are called ''Cardinal n ...
following 16 and preceding 18. It is a
prime number A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways ...
. Seventeen is the sum of the first four prime numbers.


In mathematics

17 is the seventh
prime number A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways ...
, which makes seventeen the fourth
super-prime Super-prime numbers, also known as higher-order primes or prime-indexed primes (PIPs), are the subsequence of prime numbers that occupy prime-numbered positions within the sequence of all prime numbers. The subsequence begins :3, 5, 11, 17, 31, ...
, as seven is itself prime. The next prime is 19, with which it forms a
twin prime A twin prime is a prime number that is either 2 less or 2 more than another prime number—for example, either member of the twin prime pair (41, 43). In other words, a twin prime is a prime that has a prime gap of two. Sometimes the term ''twin pr ...
. It is a cousin prime with 13 and a
sexy prime In number theory, sexy primes are prime numbers that differ from each other by 6. For example, the numbers 5 and 11 are both sexy primes, because both are prime and . The term "sexy prime" is a pun stemming from the Latin word for six: . If o ...
with 11 and 23. It is an
emirp An emirp (''prime'' spelled backwards) is a prime number that results in a different prime when its decimal digits are reversed. This definition excludes the related palindromic primes. The term ''reversible prime'' is used to mean the same as ...
, and more specifically a
permutable prime A permutable prime, also known as anagrammatic prime, is a prime number which, in a given base, can have its digits' positions switched through any permutation and still be a prime number. H. E. Richert, who is supposedly the first to study th ...
with 71, both of which are also supersingular primes. Seventeen is the sixth
Mersenne prime In mathematics, a Mersenne prime is a prime number that is one less than a power of two. That is, it is a prime number of the form for some integer . They are named after Marin Mersenne, a French Minim friar, who studied them in the early 17t ...
exponent, yielding 131,071. Seventeen is the only prime number which is the sum of four consecutive primes: 2, 3, 5, 7. Any other four consecutive primes summed would always produce an even number, thereby divisible by 2 and so not prime. Seventeen can be written in the form x^y + y^x and x^y - y^x, and, as such, it is a Leyland prime and Leyland prime of the second kind: :17=2^+3^=3^-4^. 17 is one of seven lucky numbers of Euler which produce primes of the form k^-k+41. Seventeen is the third Fermat prime, as it is of the form 2^ + 1, specifically with n=2. Since 17 is a Fermat prime, regular
heptadecagon In geometry, a heptadecagon, septadecagon or 17-gon is a seventeen-sided polygon. Regular heptadecagon A '' regular heptadecagon'' is represented by the Schläfli symbol . Construction As 17 is a Fermat prime, the regular heptadecagon is a ...
s can be constructed with a
compass A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with ...
and unmarked ruler. This was proven by Carl Friedrich Gauss and ultimately led him to choose mathematics over philology for his studies. Either 16 or 18
unit square In mathematics, a unit square is a square whose sides have length . Often, ''the'' unit square refers specifically to the square in the Cartesian plane with corners at the four points ), , , and . Cartesian coordinates In a Cartesian coordinate ...
s can be formed into rectangles with perimeter equal to the area; and there are no other
natural number In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country"). Numbers used for counting are called ''Cardinal n ...
s with this property. The Platonists regarded this as a sign of their peculiar propriety; and
Plutarch Plutarch (; grc-gre, Πλούταρχος, ''Ploútarchos''; ; – after AD 119) was a Greek Middle Platonist philosopher, historian, biographer, essayist, and priest at the Temple of Apollo in Delphi. He is known primarily for his ''P ...
notes it when writing that the Pythagoreans "utterly abominate" 17, which "bars them off from each other and disjoins them". Seventeen is the minimum number of vertices on a graph such that, if the edges are coloured with three different colours, there is bound to be a monochromatic triangle; see Ramsey's theorem. There are also: *17 crystallographic space groups in two dimensions. These are sometimes called
wallpaper group A wallpaper is a mathematical object covering a whole Euclidean plane by repeating a motif indefinitely, in manner that certain isometries keep the drawing unchanged. To a given wallpaper there corresponds a group of such congruent transformatio ...
s, as they represent the seventeen possible symmetry types that can be used for
wallpaper Wallpaper is a material used in interior decoration to decorate the interior walls of domestic and public buildings. It is usually sold in rolls and is applied onto a wall using wallpaper paste. Wallpapers can come plain as "lining paper" (so t ...
. *17 combinations of regular polygons that completely fill a plane vertex. Eleven of these belong to regular and semiregular tilings, while 6 of these (3.7.42, 3.8.24, 3.9.18, 3.10.15, 4.5.20, and 5.5.10) exclusively surround a point in the plane and fill it only when irregular polygons are included. *17 orthogonal curvilinear coordinate systems (to within a conformal symmetry) in which the three-variable
Laplace equation In mathematics and physics, Laplace's equation is a second-order partial differential equation named after Pierre-Simon Laplace, who first studied its properties. This is often written as \nabla^2\! f = 0 or \Delta f = 0, where \Delta = \nab ...
can be solved using the
separation of variables In mathematics, separation of variables (also known as the Fourier method) is any of several methods for solving ordinary and partial differential equations, in which algebra allows one to rewrite an equation so that each of two variables occurs ...
technique. *17 distinct fully supported stellations generated by an
icosahedron In geometry, an icosahedron ( or ) is a polyhedron with 20 faces. The name comes and . The plural can be either "icosahedra" () or "icosahedrons". There are infinitely many non- similar shapes of icosahedra, some of them being more symmetrica ...
. Inclusive of the icosahedron, there are 59 total stellations by
Miller's rules In geometry, stellation is the process of extending a polygon in two dimensions, polyhedron in three dimensions, or, in general, a polytope in ''n'' dimensions to form a new figure. Starting with an original figure, the process extends specific e ...
. The truncated cube and
truncated octahedron In geometry, the truncated octahedron is the Archimedean solid that arises from a regular octahedron by removing six pyramids, one at each of the octahedron's vertices. The truncated octahedron has 14 faces (8 regular hexagon, hexagons and 6 Squa ...
also produce 17 distinct fully supported stellations. *17 four-dimensional parallelotopes that are zonotopes. Another 34, or twice 17, are Minkowski sums of zonotopes with the
24-cell In geometry, the 24-cell is the convex regular 4-polytope (four-dimensional analogue of a Platonic solid) with Schläfli symbol . It is also called C24, or the icositetrachoron, octaplex (short for "octahedral complex"), icosatetrahedroid, oct ...
, itself the simplest parallelotope that is not a zonotope. Seventeen is the highest dimension for paracompact Vinberg polytopes with rank n+2 mirror facets, with the lowest belonging to the third. Seventeen is the minimum possible number of givens for a sudoku puzzle with a unique solution. This was long conjectured, and was proved between 2012 and 2014. The sequence of residues (mod ) of a
googol A googol is the large number 10100. In decimal notation, it is written as the digit 1 followed by one hundred zeroes: 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000, ...
and googolplex, for n=1, 2, 3, ..., agree up until n=17. A positive definite quadratic integer matrix represents all
primes A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways ...
when it contains at least the set of 17 numbers: . Only four prime numbers up to 73 are not part of the set.


In science

* The
atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...
of
chlorine Chlorine is a chemical element with the Symbol (chemistry), symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate betwee ...
. * The Brodmann area defining the primary visual processing area of mammalian brains. *
Group 17 The halogens () are a group (periodic table), group in the periodic table consisting of five or six chemically related chemical element, elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts). In the ...
of the
periodic table The periodic table, also known as the periodic table of the (chemical) elements, is a rows and columns arrangement of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of ch ...
is called the halogens. * The number of elementary particles with unique names in the
Standard Model The Standard Model of particle physics is the theory describing three of the four known fundamental forces (electromagnetism, electromagnetic, weak interaction, weak and strong interactions - excluding gravity) in the universe and classifying a ...
of physics.


In languages


Grammar

In Catalan, 17 is the first compound number (''disset''). The numbers 11 (''onze'') through 16 (''setze'') have their own names. In French, 17 is the first compound number (''dix-sept''). The numbers 11 (''onze'') through 16 (''seize'') have their own names. In Italian, 17 is also the first compound number (''diciassette''), whereas sixteen is ''sedici''.


Age 17

* In most countries across the world, it is the last age at which one is considered a
minor Minor may refer to: * Minor (law), a person under the age of certain legal activities. ** A person who has not reached the age of majority * Academic minor, a secondary field of study in undergraduate education Music theory *Minor chord ** Barb ...
under law. * In the UK, the minimum age for taking
driving lessons ''Driving Lessons'' is a 2006 British comedy-drama film written and directed by Jeremy Brock. The plot focuses on the relationship between a shy teenaged boy and an ageing eccentric actress. Plot Seventeen-year-old Ben Marshall is the sensitive ...
, and to drive a car or a van * In the US and Canada, it is the age at which one may purchase, rent, or reserve M-rated video games without parental consent * In some US states, and some jurisdictions around the world, 17 is the
age of sexual consent Age or AGE may refer to: Time and its effects * Age, the amount of time someone or something has been alive or has existed ** East Asian age reckoning, an Asian system of marking age starting at 1 * Ageing or aging, the process of becoming older * ...
* In most US states, Canada and in the UK, the age at which one may donate blood (without parental consent) * In many countries and jurisdictions, the age at which one may obtain a
driver's license A driver's license is a legal authorization, or the official document confirming such an authorization, for a specific individual to operate one or more types of motorized vehicles—such as motorcycles, cars, trucks, or buses—on a public ...
* In the US, the age at which one may watch, rent, or purchase R-rated movies without parental consent *The U.S. TV Parental Guidelines system sets 17 as the minimum age one can watch programs with a TV-MA rating without parental guidance. * In the US, the age at which one can enlist in the armed forces with parental consent * In the US, the age at which one can apply for a
private pilot licence A private pilot licence (PPL) or, in the United States, a private pilot certificate, is a type of pilot licence that allows the holder to act as pilot in command of an aircraft privately (not for remuneration). The licence requirements are dete ...
for powered flight (however, applicants can obtain a student pilot certificate at age 16) * In Greece and Indonesia, the voting age * In Chile and Indonesia, the minimum driving age. * In
Tajikistan Tajikistan (, ; tg, Тоҷикистон, Tojikiston; russian: Таджикистан, Tadzhikistan), officially the Republic of Tajikistan ( tg, Ҷумҳурии Тоҷикистон, Jumhurii Tojikiston), is a landlocked country in Centr ...
,
North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korea, Korean Peninsula and shares borders with China and Russia to the north, at the Yalu River, Y ...
and
Timor-Leste East Timor (), also known as Timor-Leste (), officially the Democratic Republic of Timor-Leste, is an island country in Southeast Asia. It comprises the eastern half of the island of Timor, the exclave of Oecusse on the island's north-weste ...
, the age of majority


In culture


Music


Bands

*
17 Hippies 17 Hippies is a band from Berlin, Germany, playing largely on acoustic instruments, a radically democratic collective of professionals and amateurs. Their music is a confection of various folk influences. They are most popular in their native G ...
, a German band *
Seventeen Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines * ''Seventeen'' (American magazine), an American magazine * ''Seventeen'' (Japanese m ...
(), a South Korean boy band * Heaven 17, an English new wave band * East 17, an English boy band


Albums

* ''17'' (XXXTentacion album) * ''17'' (Motel album) * ''17'' (Ricky Martin album) * ''
Chicago 17 ''Chicago 17'' is the fourteenth studio album by American band Chicago, released on May 14, 1984. It was the group's second release for Full Moon/Warner Bros. Records, their second album to be produced by David Foster and their last with founding ...
'', a 1984 album by Chicago * ''
Seventeen Days ''Seventeen Days'' is the third studio album by American rock band 3 Doors Down. It was released on February 8, 2005, five years to the day that the band released their debut album ''The Better Life.'' It topped the chart on the ''Billboard'' ...
'', a 2005 album by 3 Doors Down * ''
Seventeen Seconds ''Seventeen Seconds'' is the second studio album by English rock band the Cure, released on 18 April 1980 by Fiction Records. The album marked the first time frontman Robert Smith co-produced with Mike Hedges. After the departure of original ba ...
'', a 1980 album by The Cure * ''17 Carat'', a 2015 EP by
Seventeen Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines * ''Seventeen'' (American magazine), an American magazine * ''Seventeen'' (Japanese m ...


Songs

* "17 Again", a song by
Tide Lines Glasgow-based 4 piece, Tide Lines, have grown their large & passionate fanbase through blistering live shows and their trademark anthemic songs. Bending the edges of a number of genres, their neo-folk/rock sound has massive appeal. This unique ...
* "17" (Sky Ferreira song) * "17" (Yourcodenameis:Milo song) * " 17 Again", a song by Eurythmics * "
17 år "17 år" is a song recorded by Swedish singer and songwriter Veronica Maggio Veronica Sandra Karin Maggio (born 15 March 1981) is a Swedish singer and songwriter. Born to an Italian father and a Swedish mother, Maggio was raised in Uppsala. Af ...
", a song by Veronica Maggio * "17 Crimes", a song by AFI * " 17 Days", a song by Prince * "17", a song by
Dan Bălan Dan Mihai Bălan (born 6 February 1979) is a Moldovan artist, songwriter, and record producer. He is the founder of Moldovan eurodance band O-Zone, and wrote their international hit single "Dragostea Din Tei", which topped the charts in 32 count ...
* "17", a song by Jethro Tull * "17", a song by Kings of Leon * "17", a song by Milburn * "17", a song by Rick James from '' Reflections'' * "17", a B-side by
Shiina Ringo , known by her stage name , is a Japanese singer, songwriter and musician. She is also the founder and lead vocalist of the band Tokyo Jihen. She describes herself as "". She was ranked number 36 in a list of Japan's top 100 musicians compiled ...
on the "Tsumi to Batsu" single * "17", a song by
The Smashing Pumpkins The Smashing Pumpkins (also referred to as simply Smashing Pumpkins) are an American alternative rock band from Chicago. Formed in 1988 by frontman and guitarist Billy Corgan, bassist D'arcy Wretzky, guitarist James Iha and drummer Jimmy Chamb ...
from the album '' Adore'' * "17", a song by Youth Lagoon from the album ''
The Year of Hibernation ''The Year of Hibernation'' is the debut album of American artist Youth Lagoon, the stage name of musician Trevor Powers. The album was released on September 27, 2011 on the independent record label Fat Possum Records. It peaked at No. 41 on the ...
'' * "17 Days", a song by
Prince & the Revolution The Revolution is an American band formed in Minneapolis, Minnesota, in 1979 by Prince, serving as his live band and later as his studio band. The band's sound incorporated rock, pop, R&B, funk, new wave and psychedelic elements. Along with ...
, B side from the 1984 "When Doves Cry" single * "Seventeen" (Jet song) * "Seventeen" (Ladytron song) * "Seventeen" (Winger song) * "Seventeen", a song by ¡Forward, Russia! from ''
Give Me a Wall ''Give Me a Wall'' was the debut album from ¡Forward, Russia!, and was released in the UK on 15 May 2006 and in the US on 19 December 2006. Tracks on the album include previous singles "Twelve", "Nine" and "Thirteen". The album was released t ...
'' * "Seventeen", a song by Jimmy Eat World from ''
Static Prevails ''Static Prevails'' is the second studio album by American rock band Jimmy Eat World, released on July 23, 1996, through Capitol Records. Following the release of the band's self-titled debut album (1994), they signed to Capitol in mid-1995 ...
'' * "Seventeen", a song by Marina & the Diamonds from the US edition of '' The Family Jewels'' * "Seventeen", a song by Mat Kearney from the iTunes edition of '' Young Love'' * "Seventeen", a song from the ''Repo! The Genetic Opera'' soundtrack * "Seventeen", the original title of the song " I Saw Her Standing There" by
The Beatles The Beatles were an English Rock music, rock band, formed in Liverpool in 1960, that comprised John Lennon, Paul McCartney, George Harrison and Ringo Starr. They are regarded as the Cultural impact of the Beatles, most influential band of al ...
* "Seventeen", a song by the
Sex Pistols The Sex Pistols were an English punk rock band formed in London in 1975. Although their initial career lasted just two and a half years, they were one of the most groundbreaking acts in the history of popular music. They were responsible for ...
from ''
Never Mind the Bollocks, Here's the Sex Pistols ''Never Mind the Bollocks, Here's the Sex Pistols'' is the only studio album by English punk rock band the Sex Pistols, released on 28 October 1977 by Virgin Records in the UK and on 11 November 1977 by Warner Bros. Records in the US. The album ...
'' * "
Seventeen Forever "Seventeen Forever" is a song by the American pop band Metro Station, released as the fourth and final single from the group's 2007 self-titled debut studio album. The single was released on December 13, 2008. The song peaked at number 42 on the ...
", a song by Metro Station * "
At Seventeen "At Seventeen" is a song by American singer-songwriter Janis Ian from her seventh studio album ''Between the Lines''. Columbia released it in July 1975 as the album's second single. Ian wrote the lyrics on the basis of a ''The New York Times'' ...
", a song by Janis Ian * " Edge of Seventeen", a song by Stevie Nicks * "Seventeen Ain't So Sweet", a song by The Red Jumpsuit Apparatus from ''
Don't You Fake It ''Don't You Fake It'' is the debut studio album by American Rock music, rock band The Red Jumpsuit Apparatus. The title is taken from a line in the opening track, "In Fate's Hands". The album garnered mixed reviews from critics. ''Don't You Fake I ...
'' * "Only 17", a song by
Rucka Rucka Ali Rucka Rucka Ali (born January 27, 1987) is an Israeli-American rapper, singer, radio personality, comedian, YouTuber, and parodist. He is best known for his dark humor, political and topical song parodies on YouTube. Much of his content pokes fu ...
* "Opus 17 (Don't You Worry 'Bout Me)", a song by
Frankie Valli and the Four Seasons The Four Seasons are an American rock and pop band formed in 1960 in Newark, New Jersey. Since 1970, they have also been known at times as Frankie Valli and the Four Seasons. The band evolved out of a previous band called The Four Lovers, with ...
* "(She's) Sexy + 17", a song by Stray Cats from '' Rant N' Rave with the Stray Cats'' * "Hello, Seventeen", a song by
12012 is a Japanese visual kei rock band. Formed in 2003 in Osaka Prefecture, the group centers its work around the concept of "madness inside a human" (人間の内面における狂気 '). 12012 is also the penal code for the possession of a danger ...
* "Section 17 (Suitcase Calling)", a song by
The Polyphonic Spree The Polyphonic Spree is an American choral rock band from Dallas, Texas that was formed in 2000 by singer/songwriter Tim DeLaughter. The band's pop and rock songs are augmented by a large vocal choir, and instruments such as flute, trumpet, fre ...
* "Day Seventeen: Accident?", a song by Ayreon * "Seventeen", a song by
Alessia Cara Alessia Caracciolo (born July 11, 1996), known professionally as Alessia Cara (), is a Canadian singer-songwriter. Born in Mississauga, Ontario, to Italian Canadian parents, she began posting covers of songs on YouTube at age 13. After uploadi ...
* "Seventeen", a song performed by Marina and the Diamonds * "Seventeen" and "Seventeen (Reprise)", songs in the musical ''
Heathers ''Heathers'' is a 1989 American black comedy film written by Daniel Waters and directed by Michael Lehmann, in both of their respective film debuts. The film stars Winona Ryder, Christian Slater, Shannen Doherty, Lisanne Falk, Kim Walker, and ...
'' * "Seventeen" and "Seventeen (Reprise)", songs in the musical ''
Tuck Everlasting ''Tuck Everlasting'' is an American children's novel about immortality written by Natalie Babbitt and published by Farrar, Straus and Giroux in 1975. It has sold over 5 million copies and has been called a classic of modern children's literature ...
''


Other

* ''Seventeen'', a 1951 American musical * The ratio 18:17 was a popular approximation for the
equal tempered An equal temperament is a musical temperament or tuning system, which approximates just intervals by dividing an octave (or other interval) into equal steps. This means the ratio of the frequencies of any adjacent pair of notes is the same, w ...
semitone during the Renaissance


Film

* ''
Seventeen Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines * ''Seventeen'' (American magazine), an American magazine * ''Seventeen'' (Japanese m ...
'' (1916), an adaptation of the novel of the same name by
Booth Tarkington Newton Booth Tarkington (July 29, 1869 – May 19, 1946) was an American novelist and dramatist best known for his novels ''The Magnificent Ambersons'' (1918) and '' Alice Adams'' (1921). He is one of only four novelists to win the Pulitze ...
* '' Number 17'' (1928), a British-German film * ''
Number Seventeen ''Number Seventeen'' is a 1932 comedy thriller film directed by Alfred Hitchcock and starring John Stuart, Anne Grey and Leon M. Lion. The film, which is based on the 1925 burlesque stage play '' Number Seventeen'' written by Joseph Jeffers ...
'' (1932), directed by
Alfred Hitchcock Sir Alfred Joseph Hitchcock (13 August 1899 – 29 April 1980) was an English filmmaker. He is widely regarded as one of the most influential figures in the history of cinema. In a career spanning six decades, he directed over 50 featur ...
* ''
Seventeen Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines * ''Seventeen'' (American magazine), an American magazine * ''Seventeen'' (Japanese m ...
'' (1940), a second adaptation of the Tarkington novel * '' Number 17'' (1949), a Swedish film * '' Stalag 17'' (1953), directed by
Billy Wilder Billy Wilder (; ; born Samuel Wilder; June 22, 1906 – March 27, 2002) was an Austrian-American filmmaker. His career in Hollywood spanned five decades, and he is regarded as one of the most brilliant and versatile filmmakers of Classic Holl ...
* ''
Try Seventeen ''All I Want'' (also known as ''Try Seventeen'') is a 2002 coming-of-age comedy-drama film directed by Jeffrey Porter and written by Charles Kephart. It stars Elijah Wood, Franka Potente and Mandy Moore. The film premiered at the Toronto Internat ...
'' (2002), directed by Jeffrey Porter *'' 17 Again'' (2009), directed by
Burr Steers Burr Gore Steers is an American actor, screenwriter, and director. His films include ''Igby Goes Down'' (2002) and '' 17 Again'' (2009). He is a nephew of writer Gore Vidal. Family Steers was born in Washington, D.C. His father, Newton Ivan ...


Anime and manga

*
Android 17 ''Dragon Ball'' is a Japanese media franchise created by Akira Toriyama in 1984. The franchise features an ensemble cast of characters and takes place in the same fictional universe as Toriyama's other work, ''Dr. Slump''. While many of the cha ...
, a character from the ''
Dragon Ball is a Japanese media franchise created by Akira Toriyama in 1984. The Dragon Ball (manga), initial manga, written and illustrated by Toriyama, was serialized in ''Weekly Shōnen Jump'' from 1984 to 1995, with the 519 individual chapters colle ...
'' series * Detective Konawaka from the ''Paprika'' anime has a strong dislike for the number 17


Games

* The computer game '' Half-Life 2'' takes place in and around
City 17 The ''Half-Life'' video game series features many locations set in a dystopian future stemming from the events of the first game, ''Half-Life''. These locations are used and referred to throughout the series. The locations, for the most part, ar ...
* The visual novel '' Ever 17: The Out of Infinity'' strongly revolves around the number 17


Print

* The title of ''
Seventeen Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines * ''Seventeen'' (American magazine), an American magazine * ''Seventeen'' (Japanese m ...
'', a magazine * The title of ''
Just Seventeen ''Just Seventeen'', often referred to as ''J-17'', was a fortnightly magazine aimed at teenage girls, published by Emap from October 1983 to April 2004. A special preview edition was given away free with sister magazine ''Smash Hits'' on 13 Octob ...
'', a former magazine * The number 17 is a recurring theme in the works of
novelist A novelist is an author or writer of novels, though often novelists also write in other genres of both fiction and non-fiction. Some novelists are professional novelists, thus make a living writing novels and other fiction, while others aspire to ...
Steven Brust Steven Karl Zoltán Brust (born November 23, 1955) is an American fantasy and science fiction author of Hungarian descent. He is best known for his series of novels about the assassin Vlad Taltos, one of a disdained minority group of humans livi ...
. All of his chaptered novels have either 17 chapters or two books of 17 chapters each. Multiples of 17 frequently appear in his novels set in the fantasy world of
Dragaera Steven Karl Zoltán Brust (born November 23, 1955) is an American fantasy and science fiction author of Hungarian descent. He is best known for his series of novels about the assassin Vlad Taltos, one of a disdained minority group of humans livi ...
, where the number is considered holy. * In '' The Illuminatus! Trilogy'', the symbol for
Discordianism Discordianism is a religion, philosophy, or paradigm centered on Eris, a.k.a. Discordia, the Goddess of chaos. Discordianism uses archetypes or ideals associated with her. It was founded after the 1963 publication of its "holy book," the ''Pri ...
includes a pyramid with 17 steps because 17 has "virtually no interesting geometric, arithmetic, or mystical qualities". However, for the
Illuminati The Illuminati (; plural of Latin ''illuminatus'', 'enlightened') is a name given to several groups, both real and fictitious. Historically, the name usually refers to the Bavarian Illuminati, an Enlightenment-era secret society founded on ...
, 17 is tied with the " 23/17 phenomenon". * In the Harry Potter universe ** 17 is the coming of age for wizards. It is equivalent to the usual coming of age at 18 ** 17 is the number of Sickles in one Galleon in the British wizards' currency


Religion

* According to
Plutarch Plutarch (; grc-gre, Πλούταρχος, ''Ploútarchos''; ; – after AD 119) was a Greek Middle Platonist philosopher, historian, biographer, essayist, and priest at the Temple of Apollo in Delphi. He is known primarily for his ''P ...
's Moralia, the Egyptians have a legend that the end of Osiris' life came on the seventeenth of a month, on which day it is quite evident to the eye that the period of the full moon is over. Now, because of this, the Pythagoreans call this day "the Barrier", and utterly abominate this number. For the number seventeen, coming in between the square sixteen and the oblong rectangle eighteen, which, as it happens, are the only plane figures that have their perimeters equal their areas, bars them off from each other and disjoins them, and breaks up the
epogdoon In Western music theory, a major second (sometimes also called whole tone or a whole step) is a second spanning two semitones (). A second is a musical interval encompassing two adjacent staff positions (see Interval number for more deta ...
by its division into unequal intervals. * In the
Yasna Yasna (;"Yasna"
''
Zoroastrianism Zoroastrianism is an Iranian religions, Iranian religion and one of the world's History of religion, oldest organized faiths, based on the teachings of the Iranian peoples, Iranian-speaking prophet Zoroaster. It has a Dualism in cosmology, du ...
, seventeen chapters were written by
Zoroaster Zoroaster,; fa, زرتشت, Zartosht, label=New Persian, Modern Persian; ku, زەردەشت, Zerdeşt also known as Zarathustra,, . Also known as Zarathushtra Spitama, or Ashu Zarathushtra is regarded as the spiritual founder of Zoroastria ...
himself. These are the
Gathas The Gathas ()"Gatha"
''
raka'ahs that Muslims perform during
Salat (, plural , romanized: or Old Arabic ͡sˤaˈloːh, ( or Old Arabic ͡sˤaˈloːtʰin construct state) ), also known as ( fa, نماز) and also spelled , are prayers performed by Muslims. Facing the , the direction of the Kaaba wit ...
on a daily basis. * The number of
sura A ''surah'' (; ar, سورة, sūrah, , ), is the equivalent of "chapter" in the Qur'an. There are 114 ''surahs'' in the Quran, each divided into '' ayats'' (verses). The chapters or ''surahs'' are of unequal length; the shortest surah ('' Al-K ...
t al-Isra in the
Qur'an The Quran (, ; Standard Arabic: , Quranic Arabic: , , 'the recitation'), also romanized Qur'an or Koran, is the central religious text of Islam, believed by Muslims to be a revelation from God. It is organized in 114 chapters (pl.: , sing. ...
.


In sports

* 17 is the number of the longest winning streak in NHL history, which the
Pittsburgh Penguins The Pittsburgh Penguins (colloquially known as the Pens) are a professional ice hockey team based in Pittsburgh. They compete in the National Hockey League (NHL) as a member of the Metropolitan Division of the Eastern Conference, and have playe ...
achieved in 1993. * Larry Ellison's victorious 2013 Americas Cup Oracle racing yacht bears the name "17". * 17 is the number of the record for most NBA championships in NBA History, which the
Boston Celtics The Boston Celtics ( ) are an American professional basketball team based in Boston. The Celtics compete in the National Basketball Association (NBA) as a member of the league's Eastern Conference Atlantic Division. Founded in 1946 as one of t ...
(and as of 2020, the
Los Angeles Lakers The Los Angeles Lakers are an American professional basketball team based in Los Angeles. The Lakers compete in the National Basketball Association (NBA) as a member of the league's Western Conference Pacific Division. The Lakers play their ...
) achieved. * 17 is the number of individual laws mentioned in the
Laws of the Game (association football) The Laws of the Game are the codified rules of association football. The laws mention the number of players a team should have, the game length, the size of the field and ball, the type and nature of fouls that referees may penalize, the offside ...
. * 17 is the number of games played by each
NFL The National Football League (NFL) is a professional American football league that consists of 32 teams, divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL is one of the major ...
team as of 2021. * Since the start of the 2014 season,
Formula One Formula One (also known as Formula 1 or F1) is the highest class of international racing for open-wheel single-seater formula racing cars sanctioned by the Fédération Internationale de l'Automobile (FIA). The World Drivers' Championship, ...
drivers have been able to choose their own car number, however, following the fatal accident of Jules Bianchi, who drove car #17, the number was retired.


In other fields

Seventeen is: * Described at MIT as 'the least random number', according to the
Jargon File The Jargon File is a glossary and usage dictionary of slang used by computer programmers. The original Jargon File was a collection of terms from technical cultures such as the MIT AI Lab, the Stanford AI Lab (SAIL) and others of the old ARPANET A ...
. This is supposedly because in a study where respondents were asked to choose a random number from 1 to 20, 17 was the most common choice. ** This study has been repeated a number of times. * The number of guns in a 17-gun salute to U.S. Army, Air Force and Marine Corps Generals, and Navy and Coast Guard admirals. * The number of flames emanating from the grenade cap-badge of the
Grenadier Guards "Shamed be whoever thinks ill of it." , colors = , colors_label = , march = Slow: " Scipio" , mascot = , equipment = , equipment ...
. * During World War II, the four-engined heavy bomber as flown by the USAAF and other Allies and known as "The
Flying Fortress The Boeing B-17 Flying Fortress is a four-engined heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Relatively fast and high-flying for a bomber of its era, the B-17 was used primarily in the European Theater ...
", was also known as the B-17 * The maximum number of strokes of a
Chinese radical A Chinese radical () or indexing component is a graphical component of a Chinese character under which the character is traditionally listed in a Chinese dictionary. This component is often a semantic indicator similar to a morpheme, though ...
* The number of syllables in a
haiku is a type of short form poetry originally from Japan. Traditional Japanese haiku consist of three phrases that contain a ''kireji'', or "cutting word", 17 '' on'' (phonetic units similar to syllables) in a 5, 7, 5 pattern, and a ''kigo'', or se ...
(5 + 7 + 5) * In the
Nordic countries The Nordic countries (also known as the Nordics or ''Norden''; literal translation, lit. 'the North') are a geographical and cultural region in Northern Europe and the Atlantic Ocean, North Atlantic. It includes the sovereign states of Denmar ...
the seventeenth day of the year is considered the ''heart'' and/or the ''back'' of winter * "Highway 17" or "Route 17": See
List of highways numbered 17 Route 17, or Highway 17 can refer to the following roads: For the roads named "A17", see list of A17 roads. International * European route E17 * European route E017 Australia * Brisbane Valley Highway, Queensland * D'Aguilar Highway, Queensla ...
and List of public transport routes numbered 17 * Seventeen, also known as Lock Seventeen, an unincorporated place in
Clay Township, Tuscarawas County, Ohio Clay Township is one of the twenty-two townships of Tuscarawas County, Ohio, United States. The 2000 census found 1,981 people in the township, 721 of whom lived in the unincorporated portions of the township. Geography Located in the southern ...
* ''Seventeen'' was the former name of a yacht prior to being commissioned in the
US Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of ...
as the * In
Italian culture Italy is considered one of the birthplaces of Western civilization and a cultural superpower. Italian culture is the culture of the Italians, a Romance ethnic group, and is incredibly diverse spanning the entirety of the Italian peninsula ...
, the number 17 is considered unlucky. When viewed as the Roman numeral, XVII, it is then changed anagrammatically to VIXI, which in the
Latin language Latin (, or , ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through ...
translates to "I lived", the
perfect Perfect commonly refers to: * Perfection, completeness, excellence * Perfect (grammar), a grammatical category in some languages Perfect may also refer to: Film * Perfect (1985 film), ''Perfect'' (1985 film), a romantic drama * Perfect (2018 f ...
implying "My life is over." (c.f. "''Vixerunt''",
Cicero Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, and academic skeptic, who tried to uphold optimate principles during the political crises that led to the estab ...
's famous announcement of an execution.)
Renault Groupe Renault ( , , , also known as the Renault Group in English; legally Renault S.A.) is a French multinational automobile manufacturer established in 1899. The company produces a range of cars and vans, and in the past has manufactured ...
sold its " R17" model in Italy as "R177". See Cesana Pariol in the sport section about the name of curve 17. * The fear of the number 17 is called '
heptadecaphobia Heptadecaphobia (Greek: , "seventeen" and , , "fear") or ''heptadekaphobia'' is the fear of the number 17. It is considered to be ill-fated in Italy and other countries of Greek and Latin origins, while the date Friday the 17th is considered es ...
' or 'heptakaidekaphobia' * Some species of cicadas have a life cycle of 17 years (i.e. they are buried in the ground for 17 years between every mating season) * The number of special significance to
Yellow Pig's Day Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In the R ...
and
Hampshire College Summer Studies in Mathematics Hampshire (, ; abbreviated to Hants) is a ceremonial and non-metropolitan county in western South East England on the coast of the English Channel. Home to two major English cities on its south coast, Southampton and Portsmouth, Hampshire is ...
* The number to call police in France *
Force 17 Force 17 ( ar, القوة 17) was a commando and special operations unit of the Palestinian territories, Palestinian Fatah movement and later of the Office of the President of the Palestinian National Authority, Chairman of the Palestinian Authorit ...
, a special operations unit of the Palestinian Fatah movement * The number of the French department Charente-Maritime * The declared percentage alcohol content (by volume) of Baileys Irish Cream, an Irish whiskey and cream based liqueur made by Gilbeys of Ireland * The flight number of
Malaysia Airlines Flight 17 Malaysia Airlines Flight 17 (MH17/MAS17) was a scheduled passenger flight from Amsterdam to Kuala Lumpur that was shot down by Russian forces on 17 July 2014, while flying over eastern Ukraine. All 283 passengers and 15 crew were killed. Cont ...
which was shot down on 17 July 2014 with first test flight of plane is on 17 July 1997 exactly 17 years. * The record number of
concerts A concert is a live music performance in front of an audience. The performance may be by a single musician, sometimes then called a recital, or by a musical ensemble, such as an orchestra, choir, or musical band, band. Concerts are held in a w ...
performed in a single year at
Madison Square Garden Madison Square Garden, colloquially known as The Garden or by its initials MSG, is a multi-purpose indoor arena in New York City. It is located in Midtown Manhattan between Seventh and Eighth avenues from 31st to 33rd Street, above Pennsylva ...
by the band
Phish Phish is an American rock band formed in Burlington, Vermont, in 1983. The band is known for musical improvisation, extended jams, blending of genres, and a dedicated fan base. The band consists of guitarist Trey Anastasio, bassist Mike Gordon ...
in 2017 * The number of deaths and injured people on February 14, 2018, shooting at the Marjory
Stoneman Douglas High School shooting On February 14, 2018, 19-year-old Nikolas Cruz opened fire on students and staff at Marjory Stoneman Douglas High School in the Miami suburban town of Parkland, Florida, murdering 17 people and injuring 17 others. Cruz, a former student at t ...
.


References

*


External links


Properties of 17

Mathematical properties of 17
at yellowpigs.net


is 17 the most random number
at the wayback machine.

{{DEFAULTSORT:17 (Number) Integers