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632 Deaths
63 may refer to: * 63 (number) * one of the years 63 BC, AD 63, 1963, 2063 * +63, telephone country code in the Philippines * Flight 63 (other) * 63 (album), ''63'' (album), by Tree63 * 63 (mixtape), ''63'' (mixtape), by Kool A.D. * "Sixty Three", a song by Karma to Burn from the album ''Mountain Czar'', 2016 {{Numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
63 (number)
63 (sixty-three) is the natural number following 62 and preceding 64. In mathematics 63 is: * a deficient composite number * a highly cototient number. * a number of the form 2''n'' − 1 (with ''n'' = 6), but it is not a Mersenne prime since n is not prime and 63 is certainly not prime either. It is the only number in the Mersenne sequence whose prime factors are each factors of at least one previous element of the sequence. * a Woodall number i.e. of the form 2''n''''n'' − 1 with ''n'' = 4. * the third Delannoy number. * the sum of the powers of 2 from 0 to 5. * palindromic and a repdigit in bases 2 (1111112), 4 (3334), 8 (778), 20 (3320) and 62 (1162). * a centered octahedral number. * there are 63 posets with 5 unlabeled elements. * a Harshad number. In science * The atomic number of europium. Astronomy * Messier object M63, a magnitude 8.5 galaxy in the constellation Canes Venatici, also known as the Sunflower Galaxy. * The New General Cataloguebr>object NGC 63, a sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |