336 (number)
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300 (three hundred) is the natural number following
299 __NOTOC__ Year 299 (Roman numerals, CCXCIX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Diocletian and Maximian (or, l ...
and preceding
301 __NOTOC__ Year 301 (Roman numerals, CCCI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Postumius and Nepotianus (or, less freque ...
.


Mathematical properties

The number 300 is a triangular number and the sum of a pair of twin primes (149 + 151), as well as the sum of ten consecutive primes (13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47). It is palindromic in 3 consecutive bases: 30010 = 6067 = 4548 = 3639, and also in base 13. Factorization is 30064 + 1 is prime


Other fields

Three hundred is: * In bowling, a perfect score, achieved by rolling
strikes Strike may refer to: People *Strike (surname) Physical confrontation or removal *Strike (attack), attack with an inanimate object or a part of the human body intended to cause harm *Airstrike, military strike by air forces on either a suspected ...
in all ten frames (a total of twelve strikes) * The lowest possible Fair Isaac credit score * Three hundred ft/s is the maximum legal speed of a shot paintball * In the Hebrew Bible, the size of the military force deployed by the Israelite
judge A judge is a person who presides over court proceedings, either alone or as a part of a panel of judges. A judge hears all the witnesses and any other evidence presented by the barristers or solicitors of the case, assesses the credibility an ...
Gideon Gideon (; ) also named Jerubbaal and Jerubbesheth, was a military leader, judge and prophet whose calling and victory over the Midianites are recounted in of the Book of Judges in the Hebrew Bible. Gideon was the son of Joash, from the Abiez ...
against the Midianites () * According to
Islamic Islam (; ar, ۘالِإسلَام, , ) is an Abrahamic monotheistic religion centred primarily around the Quran, a religious text considered by Muslims to be the direct word of God (or '' Allah'') as it was revealed to Muhammad, the mai ...
tradition, 300 is the number of ancient Israeli king Thalut's soldiers victorious against
Goliath Goliath ( ) ''Goləyāṯ''; ar, جُليات ''Ǧulyāt'' (Christian term) or (Quranic term). is a character in the Book of Samuel, described as a Philistine giant In folklore, giants (from Ancient Greek: ''gigas'', cognate giga-) a ...
's soldiers * According to Herodotus, 300 is the number of ancient Spartans resisting one million Persian invaders during the
Battle of Thermopylae The Battle of Thermopylae ( ; grc, Μάχη τῶν Θερμοπυλῶν, label=Greek, ) was fought in 480 BC between the Achaemenid Persian Empire under Xerxes I and an alliance of Greek city-states led by Sparta under Leonidas I. Lasting o ...
* In Islamic history, 300 is the number of Muhammad's followers victorious in the
Battle of Badr The Battle of Badr ( ar, غَزْوَةُ بَدِرْ ), also referred to as The Day of the Criterion (, ) in the Quran, Qur'an and by Muslims, was fought on 13 March 624 CE (17 Ramadan (calendar month), Ramadan, 2 Anno Hegirae, AH), near the ...
* Three hundred is the number of families followers of Jewish heretic Sabbatai Zevi forced to convert to Islam by the Sultan of the Ottoman Empire and became the ancestors of Donmeh * Three hundred is the number of seats in the
Hellenic parliament The Hellenic Parliament ( el, Ελληνικό Κοινοβούλιο, Elliniko Kinovoulio; formally titled el, Βουλή των Ελλήνων, Voulí ton Ellínon, Boule (ancient Greece), Boule of the Greeks, Hellenes, label=none), also kno ...
* 3hunnid, a gang collective of the Black Disciples, famous for including rappers like
Chief Keef Keith Farrelle Cozart (born August 15, 1995), better known by his stage name Chief Keef, is an American rapper, singer, songwriter and record producer. His music first became popular during his teen years in the early 2010s among high school s ...
and
Lil Durk Durk Derrick Banks (born October 19, 1992), known professionally as Lil Durk, is an American rapper and singer. He is the lead member and founder of the collective and record label Only the Family (OTF). Durk garnered a cult following with the ...
.


Integers from 301 to 399


300s


301

301 = 7 × 43 = \left\. 301 is the sum of three consecutive primes (97 + 101 + 103), happy number in base 10, lazy caterer number . An
HTTP status code This is a list of Hypertext Transfer Protocol (HTTP) response status codes. Status codes are issued by a server in response to a client's request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, ...
, indicating the content has been moved and the change is permanent (permanent redirect). It is also the number of a debated
Turkish penal code Turkish may refer to: *a Turkic language spoken by the Turks * of or about Turkey ** Turkish language *** Turkish alphabet ** Turkish people, a Turkic ethnic group and nation *** Turkish citizen, a citizen of Turkey *** Turkish communities and mi ...
.


302

302 = 2 × 151. 302 is a nontotient, a happy number, the number of partitions of 40 into prime parts 302 is the
HTTP status code This is a list of Hypertext Transfer Protocol (HTTP) response status codes. Status codes are issued by a server in response to a client's request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, ...
indicating the content has been moved (temporary redirect). It is also the displacement in cubic inches of Ford's "5.0" V8 and the area code for the state of Delaware.


303

303 = 3 × 101. 303 is a palindromic semiprime. The number of compositions of 10 which cannot be viewed as stacks is 303. 303 is the "See other" HTTP status code, indicating content can be found elsewhere. Model number of the Roland TB-303 synthesizer which is accredited as having been used to create the first
acid house Acid house (also simply known as just "acid") is a subgenre of house music developed around the mid-1980s by DJs from Chicago. The style is defined primarily by the squelching sounds and basslines of the Roland TB-303 electronic bass synthesiz ...
music tracks, in the late 1980s.


304

304 = 24 × 19. 304 is the sum of six consecutive primes (41 + 43 + 47 + 53 + 59 + 61), sum of eight consecutive primes (23 + 29 + 31 + 37 + 41 + 43 + 47 + 53),
primitive semiperfect number Primitive may refer to: Mathematics * Primitive element (field theory) * Primitive element (finite field) * Primitive cell (crystallography) * Primitive notion, axiomatic systems * Primitive polynomial (disambiguation), one of two concepts * Primi ...
,
untouchable number An untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer (including the untouchable number itself). That is, these numbers are not in the image of the aliquot sum function. ...
, nontotient. 304 is the smallest number such that no square has a set of digits complementary to the digits of the square of 304: The square of 304 is 92416, while no square exists using the set of the complementary digits 03578. 304 is the HTTP code indicating the content has not been modified, and the record number of wickets taken in English cricket season by Tich Freeman in 1928.
304 Year 304 ( CCCIV) was a leap year starting on Saturday A leap year starting on Saturday is any year with 366 days (i.e. it includes 29 February) that begins on Saturday, 1 January, and ends on Sunday, 31 December. Its dominical letters hence ...
is also the name of a card game popular in Sri Lanka and southern India. It is also one of the telephone area codes for West Virginia.


305

305 = 5 × 61. 305 is the convolution of the first 7 primes with themselves. 305 is the HTTP status code indicating a proxy must be used. 305 cm is the hight of a basketball hoop.


306

306 = 2 × 32 × 17. 306 is the sum of four consecutive primes (71 + 73 + 79 + 83), pronic number, and an untouchable number. It is also a
telephone area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...
for the province of Saskatchewan, Canada.


307

307 is a prime number, Chen prime, number of one-sided octiamonds and the HTTP status code for "temporary redirect"


308

308 = 22 × 7 × 11. 308 is a nontotient, totient sum of the first 31 integers, heptagonal pyramidal number, and the sum of two consecutive primes (151 + 157).


309

309 = 3 × 103, Blum integer, number of primes <= 211.


310s


310

310 = 2 × 5 × 31. 310 is a sphenic number, noncototient, number of Dyck 11-paths with strictly increasing peaks.


311

311 is a prime number. 4311 - 3311 is prime


312

312 = 23 × 3 × 13, idoneal number.


313

313 is a prime number.


314

314 = 2 × 157. 314 is a nontotient, smallest composite number in Somos-4 sequence.


315

315 = 32 × 5 × 7 = D_ \!
rencontres number In combinatorial mathematics, the rencontres numbers are a triangular array of integers that enumerate permutations of the set with specified numbers of fixed points: in other words, partial derangements. (''Rencontre'' is French for ''encounter' ...
, highly composite odd number, having 12 divisors.


316

316 = 22 × 79. 316 is a centered triangular number and a centered heptagonal number


317

317 is a prime number, Eisenstein prime with no imaginary part, Chen prime, and a strictly non-palindromic number. 317 is the exponent (and number of ones) in the fourth base-10
repunit prime In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1 — a more specific type of repdigit. The term stands for repeated unit and was coined in 1966 by Albert H. Beiler in his book ''Recreat ...
. 317 is also shorthand for the LM317 adjustable regulator chip. It is also the area code for the
Indianapolis Indianapolis (), colloquially known as Indy, is the state capital and most populous city of the U.S. state of Indiana and the seat of Marion County. According to the U.S. Census Bureau, the consolidated population of Indianapolis and Marion ...
region.


318

318 = 2 × 3 × 53. It is a sphenic number, nontotient, and the sum of twelve consecutive primes (7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47)


319

319 = 11 × 29. 319 is the sum of three consecutive primes (103 + 107 + 109), Smith number, cannot be represented as the sum of fewer than 19 fourth powers, happy number in base 10 "319" is a song by Prince. British Rail Class 319s are dual-voltage electric multiple unit trains


320s


320

320 = 26 × 5 = (25) × (2 × 5). 320 is a Leyland number, and maximum determinant of a 10 by 10 matrix of zeros and ones. A popular bitrate.


321

321 = 3 × 107, a
Delannoy number In mathematics, a Delannoy number D describes the number of paths from the southwest corner (0, 0) of a rectangular grid to the northeast corner (''m'', ''n''), using only single steps north, northeast, or east. The Delannoy numbers are named aft ...
An
area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...
in central Florida.


322

322 = 2 × 7 × 23. 322 is a sphenic, nontotient,
untouchable Untouchable or The Untouchable may refer to: People * Untouchability, the practice of socially ostracizing a minority group of very low social status ** A word for the Dalits or Scheduled Caste of India, a group that experiences untouchability * ...
, and a Lucas number. It is also seen as a Skull and Bones reference of power


323

323 = 17 × 19. 323 is the sum of nine consecutive primes (19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53), the sum of the 13 consecutive primes (5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47), Motzkin number. A Lucas and Fibonacci pseudoprime. ''See
323 (disambiguation) 323 may refer to: *The year 323 BC *The year 323 AD *The number 323 *Area code 323, the North American area code *323 Brucia, an asteroid *Mazda 323, the widely used alternative name of the Mazda Familia motorcar *British Rail Class 323 The ...
''


324

324 = 22 × 34 = 182. 324 is the sum of four consecutive primes (73 + 79 + 83 + 89), totient sum of the first 32 integers, a square number, and an untouchable number.


325

325 = 52 × 13. 325 is a triangular number, hexagonal number, nonagonal number,
centered nonagonal number A centered nonagonal number (or centered enneagonal number) is a centered figurate number that represents a nonagon with a dot in the center and all other dots surrounding the center dot in successive nonagonal layers. The centered nonagonal n ...
. 325 is the smallest number to be the sum of two squares in 3 different ways: 12 + 182, 62 + 172 and 102 + 152. 325 is also the smallest (and only known) 3- hyperperfect number.


326

326 = 2 × 163. 326 is a nontotient, noncototient, and an untouchable number. 326 is the sum of the 14 consecutive primes (3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47), lazy caterer number .


327

327 = 3 × 109. 327 is a
perfect totient number In number theory, a perfect totient number is an integer that is equal to the sum of its iterated totients. That is, we apply the totient function to a number ''n'', apply it again to the resulting totient, and so on, until the number 1 is reached, ...
, number of compositions of 10 whose run-lengths are either weakly increasing or weakly decreasing


328

328 = 23 × 41. 328 is a
refactorable number A refactorable number or tau number is an integer ''n'' that is divisible by the count of its divisors, or to put it algebraically, ''n'' is such that \tau(n)\mid n. The first few refactorable numbers are listed in as : 1, 2, 8, 9, 12, 18, ...
, and it is the sum of the first fifteen primes (2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47).


329

329 = 7 × 47. 329 is the sum of three consecutive primes (107 + 109 + 113), and a
highly cototient number In number theory, a branch of mathematics, a highly cototient number is a positive integer k which is above 1 and has more solutions to the equation :x - \phi(x) = k than any other integer below k and above 1. Here, \phi is Euler's totient fun ...
.


330s


330

330 = 2 × 3 × 5 × 11. 330 is sum of six consecutive primes (43 + 47 + 53 + 59 + 61 + 67),
pentatope number A pentatope number is a number in the fifth cell of any row of Pascal's triangle starting with the 5-term row , either from left to right or from right to left. The first few numbers of this kind are: : 1, 5, 15, 35, 70, 126, 210, 330, 495 ...
(and hence a
binomial coefficient In mathematics, the binomial coefficients are the positive integers that occur as coefficients in the binomial theorem. Commonly, a binomial coefficient is indexed by a pair of integers and is written \tbinom. It is the coefficient of the t ...
\tbinom 4 ), a pentagonal number, divisible by the number of primes below it, and a sparsely totient number.


331

331 is a prime number, super-prime, cuban prime, sum of five consecutive primes (59 + 61 + 67 + 71 + 73), centered pentagonal number,
centered hexagonal number In mathematics and combinatorics, a centered hexagonal number, or hex number, is a centered figurate number that represents a hexagon with a dot in the center and all other dots surrounding the center dot in a hexagonal lattice. The following ...
, and Mertens function returns 0.


332

332 = 22 × 83, Mertens function returns 0.


333

333 = 32 × 37, Mertens function returns 0, Symbolically, 333 is used to represent Choronzon, a demon used in the philosophy of Thelema.


334

334 = 2 × 167, nontotient. 334 was the long-time highest score for
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
in Test cricket (held by
Sir Donald Bradman Sir Donald George Bradman, (27 August 1908 – 25 February 2001), nicknamed "The Don", was an Australian international cricketer, widely acknowledged as the greatest batsman of all time. Bradman's career Test batting average of 99.94 has bee ...
and Mark Taylor). ''
334 __NOTOC__ Year 334 ( CCCXXXIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Optatus and Caesonius (or, less frequently, year 1087 ...
'' is also the name of a science fiction novel by
Thomas M. Disch Thomas Michael Disch (February 2, 1940 – July 4, 2008) was an American science fiction author and poet. He won the Hugo Award for Best Related Book – previously called "Best Non-Fiction Book" – in 1999, and he had two other Hugo nomination ...
.


335

335 = 5 × 67, divisible by the number of primes below it, number of
Lyndon words In mathematics, in the areas of combinatorics and computer science, a Lyndon word is a nonempty string that is strictly smaller in lexicographic order than all of its rotations. Lyndon words are named after mathematician Roger Lyndon, who investig ...
of length 12.


336

336 = 24 × 3 × 7, untouchable number, number of partitions of 41 into prime parts. Also the number of dimples on an American golf ball.


337

337, prime number, emirp, permutable prime with 373 and 733, Chen prime, star number


338

338 = 2 × 132, nontotient, number of square (0,1)-matrices without zero rows and with exactly 4 entries equal to 1.


339

339 = 3 × 113,
Ulam number In mathematics, the Ulam numbers comprise an integer sequence devised by and named after Stanislaw Ulam, who introduced it in 1964. The standard Ulam sequence (the (1, 2)-Ulam sequence) starts with ''U''1 = 1 and ''U''2 =&nbs ...


340s


340

340 = 22 × 5 × 17, sum of eight consecutive primes (29 + 31 + 37 + 41 + 43 + 47 + 53 + 59), sum of ten consecutive primes (17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53), sum of the first four powers of 4 (41 + 42 + 43 + 44), divisible by the number of primes below it, nontotient, noncototient. Number o
regions
formed by drawing the line segments connecting any two of the 12 perimeter points of a 3 times 3 grid of squares and .


341

341 = 11 × 31, sum of seven consecutive primes (37 + 41 + 43 + 47 + 53 + 59 + 61), octagonal number, centered cube number, super-Poulet number. 341 is the smallest Fermat pseudoprime; it is the ''least'' ''composite'' ''odd'' modulus ''m'' greater than the base ''b'', that satisfies the ''Fermat'' property "''b''''m''−1 − 1 is divisible by ''m''", for bases up to 128 of b = 2, 15, 60, 63, 78, and 108.


342

342 = 2 × 32 × 19, pronic number, Untouchable number.


343

343 = 73, the first nice Friedman number that is composite since 343 = (3 + 4)3. It's the only known example of x2+x+1 = y3, in this case, x=18, y=7. It is z3 in a triplet (x,y,z) such that x5 + y2 = z3. The
speed of sound The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At , the speed of sound in air is about , or one kilometre in or one mile in . It depends strongly on temperature as w ...
in dry air at is 343 m/s (1,234.8 km/h)


344

344 = 23 × 43, octahedral number, noncototient, totient sum of the first 33 integers, refactorable number.


345

345 = 3 × 5 × 23, sphenic number, idoneal number


346

346 = 2 × 173, Smith number, noncototient.


347

347 is a prime number, emirp, safe prime, Eisenstein prime with no imaginary part, Chen prime, Friedman prime since 347 = 73 + 4, and a strictly non-palindromic number. It is the number of an area code in New York.


348

348 = 22 × 3 × 29, sum of four consecutive primes (79 + 83 + 89 + 97),
refactorable number A refactorable number or tau number is an integer ''n'' that is divisible by the count of its divisors, or to put it algebraically, ''n'' is such that \tau(n)\mid n. The first few refactorable numbers are listed in as : 1, 2, 8, 9, 12, 18, ...
.


349

349, prime number, sum of three consecutive primes (109 + 113 + 127), 5349 - 4349 is a prime number, since 1976 the number of seats in the
Swedish parliament The Riksdag (, ; also sv, riksdagen or ''Sveriges riksdag'' ) is the legislature and the supreme decision-making body of Sweden. Since 1971, the Riksdag has been a unicameral legislature with 349 members (), elected proportionally and s ...
. 349 was the winning number of the
Pepsi Number Fever Pepsi Number Fever, also known as the 349 incident, was a promotion held by PepsiCo in the Philippines in 1992, which led to riots and the deaths of at least five people. Promotion In February 1992, Pepsi Philippines (PCPPI) announced that t ...
grand prize draw on May 25, 1992, which had been printed on 800,000 bottles instead of the intended two. The resulting riots and lawsuits became known as the
349 incident Pepsi Number Fever, also known as the 349 incident, was a promotion held by PepsiCo in the Philippines in 1992, which led to riots and the deaths of at least five people. Promotion In February 1992, Pepsi Philippines (PCPPI) announced that t ...
.


350s


350

350 = 2 × 52 × 7 = \left\, primitive semiperfect number, divisible by the number of primes below it, nontotient, a truncated icosahedron of frequency 6 has 350 hexagonal faces and 12 pentagonal faces.
350.org 350.org is an international environmental organization addressing the climate crisis. Its stated goal is to end the use of fossil fuels and transition to renewable energy by building a global, grassroots movement. The 350 in the name stands fo ...
is an international environmental organization. 350 is the number of cubic inches displaced in the most common form of the Small Block Chevrolet V8. The number of seats in the Congress of Deputies (Spain) is 350.


351

351 = 33 × 13, triangular number, sum of five consecutive primes (61 + 67 + 71 + 73 + 79), member of
Padovan sequence In number theory, the Padovan sequence is the sequence of integers ''P''(''n'') defined. by the initial values :P(0)=P(1)=P(2)=1, and the recurrence relation :P(n)=P(n-2)+P(n-3). The first few values of ''P''(''n'') are :1, 1, 1, 2, 2, 3, 4, 5 ...
and number of compositions of 15 into distinct parts. It is also the 351 Windsor engine from Ford Motor Company as well as the
351 (building) 351 (stylized III one) is a 165,000-square-foot office building. The high-rise is in downtown St. John's, Newfoundland and Labrador, at 351 Water Street. The office building is the first to be constructed downtown in 25 years and was completed ...
in
St. John's, Newfoundland and Labrador St. John's is the capital and largest city of the Canadian province of Newfoundland and Labrador, located on the eastern tip of the Avalon Peninsula on the island of Newfoundland. The city spans and is the easternmost city in North America ...
.


352

352 = 25 × 11, the number of
n-Queens Problem The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens threaten each other; thus, a solution requires that no two queens share the same row, column, or diagonal. There are 92 solutions. ...
solutions for n = 9. It is the sum of two consecutive primes (173 + 179), lazy caterer number . The number of international appearances by Kristine Lilly for the USA women's national football (soccer) team, an all-time record for the sport. The country calling code for Luxembourg


353

353 is a prime number, Chen prime, Proth prime, Eisenstein prime with no imaginary part, palindromic prime, and Mertens function returns 0. 353 is the base of the smallest 4th power that is the sum of 4 other 4th powers, discovered by Norrie in 1911: 3534 = 304 + 1204 + 2724 + 3154. 353 is an index of a prime Lucas number.


354

354 = 2 × 3 × 59 = 14 + 24 + 34 + 44, sphenic number, nontotient, also SMTP code meaning start of mail input. It is also sum of
absolute value In mathematics, the absolute value or modulus of a real number x, is the non-negative value without regard to its sign. Namely, , x, =x if is a positive number, and , x, =-x if x is negative (in which case negating x makes -x positive), an ...
of the
coefficient In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or an expression; it is usually a number, but may be any expression (including variables such as , and ). When the coefficients are themselves var ...
s of Conway's polynomial.


355

355 = 5 × 71, Smith number, Mertens function returns 0, divisible by the number of primes below it. the numerator of the best simplified rational approximation of pi having a denominator of four digits or fewer. This fraction (355/113) is known as
Milü Milü (; "close ratio"), also known as Zulü ( Zu's ratio), is the name given to an approximation to (pi) found by Chinese mathematician and astronomer Zu Chongzhi in the 5th century. Using Liu Hui's algorithm (which is based on the areas of r ...
and provides an extremely accurate approximation for pi.


356

356 = 22 × 89, Mertens function returns 0.


357

357 = 3 × 7 × 17, sphenic number. 357 also refers to firearms or ammunition of .357 caliber, with the best-known cartridge of that size being the
.357 Magnum The .357 Smith & Wesson Magnum, .357 S&W Magnum, .357 Magnum, or 9×33mmR as it is known in unofficial metric designation, is a smokeless powder cartridge with a bullet diameter. It was created by Elmer Keith, Phillip B. Sharpe, and Douglas B. ...
. The
.357 SIG The .357 SIG (designated as the 357 Sig by the SAAMI and 357 SIG by the C.I.P. or 9×22mm in unofficial metric notation) is a bottlenecked rimless centerfire handgun cartridge developed by the Swiss- German firearms manufacturer SIG Sauer, ...
, whose name was inspired by the performance of the .357 Magnum, is actually a 9 mm or .355 caliber.


358

358 = 2 × 179, sum of six consecutive primes (47 + 53 + 59 + 61 + 67 + 71), Mertens function returns 0, number of ways to partition and then partition each cell (block) into subcells. It is the
country calling code Country calling codes or country dial-in codes are telephone number prefixes for reaching telephone subscribers in the networks of the member countries or regions of the International Telecommunication Union (ITU). The codes are defined by the ...
for Finland.


359

359 is a prime number, safe prime, Eisenstein prime with no imaginary part, Chen prime, and strictly non-palindromic number.


360s


360

360 = triangular matchstick number.


361

361 = 192, centered triangular number, centered octagonal number, centered decagonal number, member of the Mian–Chowla sequence; also the number of positions on a standard 19 x 19 Go board. The Bahá'í calendar is based on 19 months of 19 days each.


362

362 = 2 × 181 = σ2(19): sum of squares of divisors of 19, Mertens function returns 0, nontotient, noncototient.


363

363 = 3 × 112, sum of nine consecutive primes (23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59), Mertens function returns 0, perfect totient number.


364

364 = 22 × 7 × 13, tetrahedral number, sum of twelve consecutive primes (11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53), Mertens function returns 0, nontotient. It is a repdigit in base 3 (111111), base 9 (444), base 25 (EE), base 27 (DD), base 51 (77) and base 90 (44). The total number of gifts received in the song "
The Twelve Days of Christmas The Twelve Days of Christmas, also known as Twelvetide, is a festive Christian season celebrating the Nativity of Jesus. In some Western ecclesiastical traditions, "Christmas Day" is considered the "First Day of Christmas" and the Twelve Days a ...
"


365

365 = 5 × 73


366

366 = 2 × 3 × 61, sphenic number, Mertens function returns 0, noncototient, number of complete partitions of 20, 26-gonal and 123-gonal. Also, the number of days in a leap year.


367

367 is a prime number,
Perrin number In mathematics, the Perrin numbers are defined by the recurrence relation : for , with initial values :. The sequence of Perrin numbers starts with : 3, 0, 2, 3, 2, 5, 5, 7, 10, 12, 17, 22, 29, 39, ... The number of different maxima ...
, happy number, prime index prime and a strictly non-palindromic number.


368

368 = 24 × 23. It is also a Leyland number.


369

369 = 32 × 41, it is the
magic constant The magic constant or magic sum of a magic square is the sum of numbers in any row, column, or diagonal of the magic square. For example, the magic square shown below has a magic constant of 15. For a normal magic square of order ''n'' – that is ...
of the 9 × 9 normal
magic square In recreational mathematics, a square array of numbers, usually positive integers, is called a magic square if the sums of the numbers in each row, each column, and both main diagonals are the same. The 'order' of the magic square is the number ...
and ''n''-queens problem for ''n'' = 9; there are 369 free polyominoes of order 8. With 370, a Ruth–Aaron pair with only distinct prime factors counted.


370s


370

370 = 2 × 5 × 37, sphenic number, sum of four consecutive primes (83 + 89 + 97 + 101), nontotient, with 369 part of a Ruth–Aaron pair with only distinct prime factors counted, Base 10
Armstrong number In number theory, a narcissistic number 1 F_ : \mathbb \rightarrow \mathbb to be the following: : F_(n) = \sum_^ d_i^k. where k = \lfloor \log_ \rfloor + 1 is the number of digits in the number in base b, and : d_i = \frac is the value of each d ...
since 33 + 73 + 03 = 370. System/370 is a computing architecture from IBM.


371

371 = 7 × 53, sum of three consecutive primes (113 + 127 + 131), sum of seven consecutive primes (41 + 43 + 47 + 53 + 59 + 61 + 67), sum of the primes from its least to its greatest prime factor , the next such composite number is 2935561623745,
Armstrong number In number theory, a narcissistic number 1 F_ : \mathbb \rightarrow \mathbb to be the following: : F_(n) = \sum_^ d_i^k. where k = \lfloor \log_ \rfloor + 1 is the number of digits in the number in base b, and : d_i = \frac is the value of each d ...
since 33 + 73 + 13 = 371.


372

372 = 22 × 3 × 31, sum of eight consecutive primes (31 + 37 + 41 + 43 + 47 + 53 + 59 + 61), noncototient,
untouchable number An untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer (including the untouchable number itself). That is, these numbers are not in the image of the aliquot sum function. ...
, refactorable number.


373

373, prime number,
balanced prime In number theory, a balanced prime is a prime number with equal-sized prime gaps above and below it, so that it is equal to the arithmetic mean of the nearest primes above and below. Or to put it algebraically, given a prime number p_n, where is it ...
,
two-sided prime In number theory, a left-truncatable prime is a prime number which, in a given base, contains no 0, and if the leading ("left") digit is successively removed, then all resulting numbers are prime. For example, 9137, since 9137, 137, 37 and 7 are ...
, sum of five consecutive primes (67 + 71 + 73 + 79 + 83), permutable prime with 337 and 733, palindromic prime in 3 consecutive bases: 5658 = 4549 = 37310 and also in base 4: 113114.


374

374 = 2 × 11 × 17, sphenic number, nontotient, 3744 + 1 is prime.


375

375 = 3 × 53, number of regions in regular 11-gon with all diagonals drawn.


376

376 = 23 × 47, pentagonal number, 1- automorphic number, nontotient, refactorable number.


377

377 = 13 × 29, Fibonacci number, a centered octahedral number, a Lucas and Fibonacci pseudoprime, the sum of the squares of the first six primes, a common approximation for the
impedance of free space The impedance of free space, , is a physical constant relating the magnitudes of the electric and magnetic fields of electromagnetic radiation travelling through free space. That is, , where is the electric field strength and is the magnetic fiel ...
in ohms. 377 is an approximation of 2π60, which crops up frequently in calculations involving 60 Hz AC power.


378

378 = 2 × 33 × 7, triangular number, cake number, hexagonal number, Smith number.


379

379 is a prime number, Chen prime, lazy caterer number and a happy number in base 10. It is the sum of the 15 consecutive primes (3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53). 379! - 1 is prime.


380s


380

380 = 22 × 5 × 19, pronic number,Number of regions into which a figure made up of a row of 6 adjacent congruent rectangles is divided upon drawing diagonals of all possible rectangles
and .


381

381 = 3 × 127, palindromic in base 2 and base 8. It is the sum of the first 16
prime numbers 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 ...
(2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53).


382

382 = 2 × 191, sum of ten consecutive primes (19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59), Smith number.


383

383, prime number, safe prime, Woodall prime, Thabit number, Eisenstein prime with no imaginary part, palindromic prime. It is also the first number where the sum of a prime and the reversal of the prime is also a prime. 4383 - 3383 is prime.


384


385

385 = 5 × 7 × 11, sphenic number,
square pyramidal number In mathematics, a pyramid number, or square pyramidal number, is a natural number that counts the number of stacked spheres in a pyramid with a square base. The study of these numbers goes back to Archimedes and Fibonacci. They are part of a broa ...
, the number of integer partitions of 18. 385 = 102 + 92 + 82 + 72 + 62 + 52 + 42 + 32 + 22 + 12


386

386 = 2 × 193, nontotient, noncototient, centered heptagonal number, number of surface points on a cube with edge-length 9. 386 is also shorthand for the Intel 80386 microprocessor chip. 386 generation refers to South Koreans, especially politicians, born in the '60s ().


387

387 = 32 × 43, number of graphical partitions of 22, also shorthand for the Intel 80387, math coprocessor chip to the 386.


388

388 = 22 × 97 = solution to postage stamp problem with 6 stamps and 6 denominations, number of uniform rooted trees with 10 nodes.


389

389, prime number, emirp, Eisenstein prime with no imaginary part, Chen prime, highly cototient number, strictly non-palindromic number. Smallest conductor of a rank 2 Elliptic curve. Also, 389 equals the displacement in cubic inches of the famous Pontiac GTO V-8 engine of 1964–66. The port number for LDAP, and the name for the
Fedora Directory Server The 389 Directory Server (previously Fedora Directory Server) is a Lightweight Directory Access Protocol (LDAP) server developed by Red Hat as part of the community-supported Fedora Project. The name "389" derives from the port number used by LD ...
project.


390s


390

390 = 2 × 3 × 5 × 13, sum of four consecutive primes (89 + 97 + 101 + 103), nontotient, :\sum_^^ is prime System/390 is a computing architecture from IBM.


391

391 = 17 × 23, Smith number, centered pentagonal number.


392

392 = 23 × 72, Achilles number.


393

393 = 3 × 131, Blum integer, Mertens function returns 0. 393 is the number of county equivalents in Canada


394

394 = 2 × 197 = S5 a Schröder number, nontotient, noncototient.


395

395 = 5 × 79, sum of three consecutive primes (127 + 131 + 137), sum of five consecutive primes (71 + 73 + 79 + 83 + 89), number of (unordered, unlabeled) rooted trimmed trees with 11 nodes.


396

396 = 22 × 32 × 11, sum of twin primes (197 + 199), totient sum of the first 36 integers, refactorable number, Harshad number,
digit-reassembly number Digit-reassembly numbers, or Osiris numbers, are numbers that are equal to the sum of permutations of sub-samples of their own digits (compare the dismemberment and reconstruction of the god Osiris in Egyptian mythology). For example, 132 = 12 + 2 ...
. 396 also refers to the displacement in cubic inches of early Chevrolet Big-Block engines.


397

397, prime number, cuban prime, centered hexagonal number.


398

398 = 2 × 199, nontotient. :\sum_^^ is prime


399

399 = 3 × 7 × 19, sphenic number, smallest
Lucas–Carmichael number In mathematics, a Lucas–Carmichael number is a positive composite integer ''n'' such that # if ''p'' is a prime factor of ''n'', then ''p'' + 1 is a factor of ''n'' + 1; # ''n'' is odd and square-free. The first condition resembles the Korselt's ...
, Leyland number of the second kind. 399! + 1 is prime.


References

{{Integers, 3 Integers