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64 - Carthagène - Décembre 2008.jpg
64 or sixty-four or ''variation'', may refer to: * 64 (number) Dates * one of the years 64 BC, AD 64, 1864, 1964, 2064, etc. * June 4th Events Pre-1600 *1411 – King Charles VI granted a monopoly for the ripening of Roquefort cheese to the people of Roquefort-sur-Soulzon as they had been doing for centuries. *1561 – The steeple of St Paul's, the medieval cathedra ... (6/4) ** the date of the 1989 Tiananmen Square protests and massacre * April 6th (6/4) * April 6 AD (6/4) * June 4 AD (6/4) Places * Highway 64, see list of highways numbered 64 ** Interstate 64, a national route in the United States * +64, country code dialing code of New Zealand; see Telephone numbers in New Zealand * 64 Angelina (asteroid 64), a main-belt asteroid Other uses * Nintendo 64, the third home console by Nintendo, released in 1996 * Commodore 64 * 64-bit computing * 64 (song), "64" (song), a 2011 song by hip hop band Odd Future * ''Sixty Four'' (album), a 2004 album recorded in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
64 (number)
64 (sixty-four) is the natural number following 63 and preceding 65. In mathematics Sixty-four is the square of 8, the cube of 4, and the sixth power of 2. It is the smallest number with exactly seven divisors. It is the lowest positive power of two that is adjacent to neither a Mersenne prime nor a Fermat prime. 64 is the sum of Euler's totient function for the first fourteen integers. It is also a dodecagonal number and a centered triangular number. 64 is also the first whole number (greater than 1) that is both a perfect square and a perfect cube. Since it is possible to find sequences of 64 consecutive integers such that each inner member shares a factor with either the first or the last member, 64 is an ErdÅ‘s–Woods number. In base 10, no integer added up to its own digits yields 64, hence it is a self number. 64 is a superperfect number—a number such that σ(σ(''n'')) = 2''n''. 64 is the index of Graham's number in the rapidly growing sequence 3 ↑↑↑â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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