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90,000 (ninety thousand) is the natural number that comes after 89,999 and before 90,001. ==Selected numbers== * 90000 – sum of the cubes of the first 24 positive integers, square of 300. * 90625 – the only five-digit automorphic number: 906252 = 8212890625 * 93312 – Leyland number: 66 + 66 * 94249 – palindromic square: 3072 * 94932 – Leyland number: 75 + 57 * 95121 – Kaprekar number: 951212 = 9048004641; 90480 + 04641 = 95121 * 96557 – Markov number: 52 + 64662 + 965572 = 3 × 5 × 6466 × 96557 * 99066 – largest number whose square uses all of the decimal digits once: 990662 = 9814072356 * 99999 – repdigit, Kaprekar number: 999992 = 9999800001; 99998 + 00001 = 99999 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「90000 (number)」の詳細全文を読む スポンサード リンク
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