翻訳と辞書 Words near each other ・ 65 (number) ・ 65 Andromedae ・ 65 Aquarii ・ 65 Arietis ・ 65 Aurigae ・ 65 BC ・ 65 Broadway ・ 65 Cybele ・ 63rd Venice International Film Festival ・ 63rd Virginia Infantry ・ 63rd World Science Fiction Convention ・ 63U-11 virus ・ 64 ・ 64 (disambiguation) ・ 64 (magazine) ・ 64 (number) ・ 64 Andromedae ・ 64 Angelina ・ 64 Aquarii ・ 64 Aquilae ・ 64 Arietis ・ 64 Aurigae ・ 64 Baker Street ・ 64 BC ・ 64 Eridani ・ 64 Serpentis ・ 64 Spoons ・ 64 Squadron ・ 64 Studio ・ 64 Zoo Lane Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 64 (number) ： ウィキペディア英語版 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 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 Erdős–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 $3\backslash uparrow\backslash uparrow\backslash uparrow\backslash uparrow\; 3,\; 3\backslash uparrow^3,\; \backslash ldots$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「64 (number)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.