|
261 (number)
261 (two hundred ndsixty-one) is a natural number proceeded by the number 260 and followed by 262. It has the prime factorization 32·29. Mathematical properties There are six divisors of this number, the divisors being , , , , , and 261 itself. 261 is a deficient number, since 261 is nonagonal number, unique period in base 2, and the number of possible unfolded tesseract patterns. 261 is a lucky number, as well as an odious number, meaning it has an odd number of 1's in its binary expansion, which is (with 3 ones in it). In other fields * 261 AD, a calendar year * 261 AM, a radio frequency * 261 BC, a calendar year * 261 Fearless, a non-profit organization started by Kathrine Switzer, who in 1967 wore bib number 261 when she became the first woman to run the Boston Marathon as a numbered entrant * +261, a country calling code; see telephone numbers in Madagascar * H.261, a video compression standard Military / Transportation * Flight 261, several airliner in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
262 (number)
262 (two hundred ndsixty-two) is a natural number proceeded by the number 261 and followed by 263. It has the prime factorization 2·131. Mathematical properties There are four divisors of this number, the divisors being , , , and 262 itself, which makes it a semiprime. It is the sixth meandric number, and the ninth open meandric number. As it cannot be divided into the sum of the proper divisors of any number, it is the 17th untouchable number. As it eventually reaches 1 when replaced by the sum of the square of each digit, it is the 40th 10-happy number. As 262 is 262 backwards, it is a palindrome number. 262 was once the lowest number not to have its own Wikipedia page for more than three years since March 2017 when 261 was first created, this making it a candidate for the lowest uninteresting Number according to the definition given by Alex Bellos. In other fields 262 may refer to: * 262 AD, a calendar year * 262 BC, a calendar year * +262, a country calling cod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
260 (number)
260 (two hundred ndsixty) is the natural number following 259 and preceding 261. It is also the magic constant of the ''n''×''n'' normal magic square and ''n''-queens problem for ''n'' = 8, the size of an actual chess board. 260 is also the magic constant of the Franklin magic square devised by Benjamin Franklin. The minor diagonal gives 260, and in addition a number of combinations of two half diagonals of four numbers from a corner to the center give 260. There are 260 days in the Mayan sacred calendar Tzolkin. 260 may also refer to the years AD 260 and 260 BC. Integers from 261 to 269 261 261 = 32·29, lucky number, nonagonal number, unique period in base 2, number of possible unfolded tesseract patterns. 262 262 = 2·131, meandric number, open meandric number, untouchable number, happy number, palindrome number, semiprime, current first uninteresting number (by Alex Bellos's definition). 263 263 is a prime, safe prime, hap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NGC 261
NGC 261 is a diffuse nebula A nebula ('cloud' or 'fog' in Latin; pl. nebulae, nebulæ or nebulas) is a distinct luminescent part of interstellar medium, which can consist of ionized, neutral or molecular hydrogen and also cosmic dust. Nebulae are often star-forming region ... located in the constellation Tucana. It was discovered on September 5, 1826 by James Dunlop. References External links * 0261 Tucana (constellation) {{nebula-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kosmos 261
Kosmos 261 (russian: Космос 261 meaning ''Cosmos 261''), also known as DS-U2-GK No.1, was a Soviet satellite which was launched in 1968 as part of the Dnepropetrovsk Sputnik programme. It was a spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study the density of air in the upper atmosphere, and investigate aurorae. Kosmos 261 set the way for the Intercosmos Program. Hungary, Poland, Romania, Czechoslovakia, DDR and Bulgaria were the six Soviet Bloc countries that collaborated in the experiments on board the satellite. A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 261 into low Earth orbit from Site 133/1 at the Plesetsk Cosmodrome. The launch occurred at 23:55:00 UTC on 19 December 1968, and resulted in the successful insertion of the satellite into orbit. Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1968-117A. The North American Aerospace Defense Command assigned it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
261 Prymno
Prymno (minor planet designation: 261 Prymno) is a somewhat large Main belt asteroid. It is classified as a B-type asteroid and probably has a primitive composition not unlike common C-type carbonaceous asteroids. It was discovered by C. H. F. Peters on October 31, 1886, in Clinton, New York and was named after the Greek Oceanid In Greek mythology, the Oceanids or Oceanides (; grc, Ὠκεανίδες, Ōkeanídes, pl. of grc, Ὠκεανίς, Ōkeanís, label=none) are the nymphs who were the three thousand (a number interpreted as meaning "innumerable") daughters o ... Prymno. References The Asteroid Orbital Elements Database External links [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VMM-261
Marine Medium Tiltrotor Squadron 261 (VMM-261) is a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport aircraft. The squadron, known as the "Raging Bulls", is based at Marine Corps Air Station (MCAS) New River, North Carolina and typically falls under the command of Marine Aircraft Group 26 (MAG-26) and the 2nd Marine Aircraft Wing (2nd MAW). They are the fourth squadron in the Marine Corps to transition to the MV-22 Osprey. Mission Provide assault support of combat troops, supplies and equipment during amphibious operations and subsequent operations ashore. Routinely, VMM squadrons provide the foundation for an aviation combat element (ACE) of any level Marine Air-Ground Task Force (MAGTF) mission that may include conventional assault support tasks and special operations. History Early years Marine Helicopter Transport Squadron 261 (HMR-261) was commissioned on 5 April 1951 at Marine Corps Air Station Cherry Point, North Carolina. From 1951 thro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milwaukee Road 261
Milwaukee Road 261 is a class "S3" 4-8-4 " Northern" type steam locomotive built by the American Locomotive Company (ALCO) in Schenectady, New York in July, 1944 for the Milwaukee Road. It was used for heavy mainline freight and passenger work until being retired by the railroad in 1956. Instead of being cut up for scrap, 261 was preserved and donated to the National Railroad Museum in Green Bay, Wisconsin in 1958. Today, the locomotive is owned, operated and maintained by Minneapolis-based nonprofit organization Friends of the 261, which runs occasional and seasonal excursion trains using the locomotive. The steam engine, restored in 1993,''Passenger Train Journal'', November 1993, p. 20. Interurban Press/Pentrex. has logged more than under its own power since that time. History Revenue service and retirement (1944–1958) Built by the American Locomotive Company in July 1944, 261 was originally operated by Milwaukee Road. The locomotive, weighing , is rated at a maximum of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messerschmitt Me 261
The Messerschmitt Me 261 ''Adolfine'' was a long- range reconnaissance aircraft designed in the late 1930s. It looked like an enlarged version of the Messerschmitt Bf 110. It was not put into production; just three Me 261s were built and used primarily for testing and development purposes. Design and development In 1937, Messerschmitt began ''Projekt'' P. 1064, a study for a long-range reconnaissance aircraft, and took the design of the Bf 110 twin-engine heavy fighter (and derivative Bf 161 reconnaissance / Bf 162 light bomber projects) as its basis. The P. 1064 had a long, slim fuselage with two wing-mounted engines. The aircraft was planned from the outset as a record-breaking aircraft, but after becoming convinced that the aircraft was capable of taking the world long-distance flight record, the German Air Ministry (''Reichsluftfahrtministerium'') approved the project and gave it the airframe designation number of 8-261.Green 1970, p. 617. The intended goal of the project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KiHa 261 Series
The is a tilting diesel multiple unit (DMU) train type operated by Hokkaido Railway Company (JR Hokkaido) on limited express services in Hokkaido, Japan, since 2000. Design The running gear was based on the KiHa 201 series trains introduced in 1997, and the body design was a joint venture with the Danish State Railways (DSB). Fleet , 35 KiHa 261 series vehicles were in operation. 14 were built by Fuji Heavy Industries, and 21 were built by JR Hokkaido. A further 28 vehicles are on order to be delivered from fiscal 2015. Operations KiHa 261 series trainsets are used on the following services. KiHa 261-0 series * '' Sōya'' services between and , since 11 March 2000 * '' Sarobetsu'' services between and , since 4 March 2017 KiHa 261-1000 series * '' Tokachi'' services between and , since 1 October 2007 * '' Hokuto'' services between and , since 26 March 2016 * '' Ōzora'' services between and Kushiro, since 14 March 2020 Formations ''Sōya'' ''Sōya'' servic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Submarine U-261
German submarine ''U-261'' was a Type VIIC U-boat of Nazi Germany's ''Kriegsmarine'' during World War II. The submarine was laid down on 17 May 1941 at the Bremer Vulkan yard at Bremen-Vegesack as yard number 26, launched on 16 February 1942 and commissioned on 28 March under the command of ''Kapitänleutnant'' Hans Lange. After training with the 8th U-boat Flotilla, ''U-261'' was transferred to the 6th U-boat Flotilla, for front-line service from 1 September 1942. ''U-261'' sank no ships in her short career. Her only patrol began when she departed Kiel on 8 September 1942. Her route took her through the gap between the Faroe and Shetland Islands toward the Atlantic Ocean. She never got that far. On 15 September 1942, she was sunk by an Armstrong Whitworth Whitley of No. 58 Squadron RAF west of the Scottish island group. Design German Type VIIC submarines were preceded by the shorter Type VIIB submarines. ''U-261'' had a displacement of when at the surface and while subm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight 261 (other)
Flight 261 may refer to: * Alaska Airlines Flight 261, a crash into the Pacific Ocean off California in 2000 * Golden West Airlines Flight 261 Golden West Airlines Flight 261, a De Havilland Twin Otter DHC-6, collided with a Cessna 150 (N11421), owned by CessnAir Aviation, Inc., near Whittier, California. The accident occurred on January 9, 1975, at approximately 4:07 p.m. PST, whil ..., a mid-air collision in Whittier, California in 1975 * Thai Airways Flight 261, a crash landing in Thailand in 1998 {{disambig 0261 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Numbers In Madagascar
Telephone numbers in Madagascar are seven digits long, the first two digits being an area code. Recent ITU documents suggest the area code is preceded by a two digit operator code, for example "20" for Telecom Malagasy. International numbering plan International numbering format: +261 AB Z PQMCDU where: *+261 international prefix *AB operator code (two digits for each operator) *Z area code (described as administrative area) *PQMCDU subscriber number ;Country code 261 :Country code 261 for all existing telecommunication networks in Madagascar. ;AB – operator code :Each operator is identified by two digits described by the characters AB: :*20-29 identification code for fixed service operators, :*30-39 identification code for mobile service operators ;Z – area code valid for Telecom Malagasy (fixed-service operator) :Madagascar is divided into six zones: :*Z = 2 Antananarivo zone :*Z = 4 Antananarivo zone (rest of the province) :*Z = 5 Toamasina zone :*Z = 6 Mahajanga zone :* ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_1960.jpg "Click for more on -> VMM-261")
