翻訳と辞書 Words near each other ・ 88th Minnesota Legislature ・ 88th Motor Rifle Division ・ 88th New York Infantry ・ 88th New York State Legislature ・ 88th Ohio Infantry ・ 88th parallel ・ 88th Postal and Courier Regiment RLC ・ 88th Regiment of Foot (Connaught Rangers) ・ 88th Regiment of Foot (disambiguation) ・ 88th Regiment of Foot (Highland Volunteers) ・ 88th Scripps National Spelling Bee ・ 88th Street (IND Fulton Street Line) ・ 88th United States Congress ・ 89 ・ 89 (disambiguation) ・ 89 (number) ・ 89 Albert Embankment ・ 89 Aquarii ・ 89 BC ・ 89 Combat Flying School ・ 89 Cubs ・ 89 Herculis ・ 89 Julia ・ 89 Millimeter ・ 89 North Bergen-Hoboken ・ 89 Squadron ・ 89 Virginis ・ 89.0 RTL ・ 89.1 FM ・ 89.1 Radio Blue Mountains 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 89 (number) ： ウィキペディア英語版 89 (number) 89 (eighty-nine) is the natural number following 88 and preceding 90. == In mathematics == Eighty-nine is the 24th prime number, following 83 and preceding 97. 89 is a Chen prime and a Pythagorean prime. It is the smallest Sophie Germain prime to start a Cunningham chain of the first kind of six terms, . 89 is an Eisenstein prime with no imaginary part and real part of the form $3n\; -\; 1$. ''M''89 is the 10th Mersenne prime. 89 is a Fibonacci number and thus a Fibonacci prime as well. The first few digits of its reciprocal coincide with the Fibonacci sequence due to the identity :$\backslash frac=\backslash sum\_^\backslash infty\{F(n)\backslash times\; 10^\{-(n+1)\}\}=0.011235955\backslash dots\backslash \; .$ 89 is also a Markov number, appearing in solutions to the Markov Diophantine equation with other odd-indexed Fibonacci numbers. Although 89 is not a Lychrel number in base 10, it is unusual that it takes 24 iterations of the reverse and add process to reach a palindrome. Among the known non-Lychrel numbers in the first 10000 integers, no other number requires that many or more iterations. The palindrome reached is also unusually large.〔Weisstein, Eric W. "196-Algorithm." From MathWorld, a Wolfram Web Resource. (http://mathworld.wolfram.com/196-Algorithm.html )〕 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「89 (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.