ガ计

计厩產ガ (Dattatreya Ramachandra Kaprekar 1905-1986 )

(酚The MacTutor History of Mathematics Achievehttp://www-gap.dcs.st-and.ac.uk/~history/ )

ガ计

452 = 2025τ 45 = 20 + 25┮ 45 琌ガ计 (Kaprekar Number)

992 = 9801τ 99 = 98 + 1┮ 99 琌ガ计

絵ㄢㄒ秆ガ计盾

ガ计琌琘计辊 (Power, 硄盽キよ) だ糶Θ璝琿 (硄盽ㄢ琿)–琿А斗タ计㎝琘计 (秨 0) τ计琿ぇ㎝タ琌琘计计厩產ガ (Dattatreya Ramachandra Kaprekar 1905-1986 )┪亩炊纯癸计筁╯τ

ガ计珹 1, 9, 45, 55, 99, 297, 703, 999, 2223, 2728 ... (OEIS A006886)

иぃ螟祇瞷 9  99  999 单硂ㄇパ 9 舱Θ计 (Repdigit) 妮ガ计

蔼Ωガ计

独в地翠パ级絑计厩稲癸ガ计纯瞏贝眔ㄇΤ届挡狦

452 = 2025τ 20 + 25 = 45

453 = 91125τ 09 + 11 + 25 = 45

454 = 4100625τ 04 + 10 + 06 + 25 = 45

蔼Ωよガ计Τ盾ㄒ

77765 = 28430288029929701376τ 2843 + 0288 + 0299 + 2970 + 1376 = 7776

独в地临Τ┦借き计璸 271007344095120硂计きΩよ程ソ琿А 0 セぃ才ガ计﹚竡

钡ㄓせきΩガ计玥ぃ穦Τ拜肈璸500499505791540539598697665335697598 ㎝ 732347

せΩガ计程笷计64727568

把σゅ膍の呼

Wikipedia. "Kaprekar Number." From Wikipedia. http://en.wikipedia.org/wiki/Kaprekar_number.

独в地, "蔼Ω Kaprekar Numbers ㄇ穓碝挡狦" . http://blog.chinaunix.net/u/14418/showart_77612.html.