‵紈计
┮Τ疉の计拜肈琌秈 (Numeral System) 拜肈
虏虫计ぃ秈獽ΤぃボよΑ钡ㄓ弧┮瞷计Τ┮ぃ
‵紈计 (Harshad Number) 拜肈琌妓
秈100 琌‵紈计秈100 玥ボ 11001002ㄤ计羆㎝ 3 ぃ琌 100 100 秈ぃ琌‵紈计
は筁ㄓョΤㄇ计秈琌‵紈计秈柑ぃ琌
14 秈ㄤ计羆㎝ 5ぃ琌‵紈计秈柑ㄤボ 207 计羆㎝ 2琌 14 秈钵柑14 琌‵紈计
计秈琌‵紈计и嘿 2-‵紈计 (2-Harshad Number)秈琌‵紈计 3-‵紈计 (3-Harshad Number) n 秈琌‵紈计玥琌 n-‵紈计 (n-Harshad Number)и盽嘿‵紈计琌秈‵紈计
璝计ヴ秈常琌‵紈计杠и獽嘿ぇ‵紈计 (All - Harshad Number)痙種俱计 N 璝秈 B - 秈いㄤい B > N 玥赣计獽琌虫计ョ琌礛Θ‵紈计兵ン璝 B = NN ョ穦陪ボΘ 10B ㄤ计羆㎝ 1骸ì‵紈计兵ンパиノσ納 B < N 薄猵獽 9 计代刚挡狦
计 | 秈 | 秈 | 秈 | き秈 | せ秈 | 秈 | 秈 | 秈 |
2 | 10 | | | | | | | |
3 | 11 | 10 | | | | | | |
4 | 100 | 11 | 10 | | | | | |
5 | 101 | 12 | 11 | 10 | | | | |
6 | 110 | 20 | 12 | 11 | 10 | | | |
7 | 111 | 21 | 13 | 12 | 11 | 10 | | |
8 | 1000 | 22 | 20 | 13 | 12 | 11 | 10 | |
9 | 1001 | 100 | 21 | 14 | 13 | 12 | 11 | 10 |
10 | 1010 | 101 | 22 | 20 | 14 | 13 | 12 | 11 |
爹讽い赣秈‵紈计い秈灿计眖菠
い镑ㄏ场计は獽琌‵紈计度 246计碝т琌畕礛硈ぃノ代刚 1 и碞Τ 1, 2, 4, 6 硂‵紈计
抖笵矗瓣计厩炊の厩皑紈 (Martin Gardner 1914- 2010) 纯承筁硂妓笵计厩醇肈
10, 11, 12, 13, 14, 20, 22, ?, 1010
瞦瞦?ぐ或计
絵セ彻弧眔睲贰翴琌ソ︽產莱赣瞦ぃ岿摆氮獽琌 101
把σゅ膍の呼
Wikipedia. "Harshad Number." From Wikipedia. http://en.wikipedia.org/wiki/Harshad_number.