IJPAM: Volume 80, No. 3 (2012)


Yutaka Nishiyama
Department of Business Information
Faculty of Information Management
Osaka University of Economics
2, Osumi Higashiyodogawa Osaka, 533-8533, JAPAN

Abstract. The number 6174 is a really mysterious number. At first glance, it might not seem so obvious, but as we are about to see, anyone who can subtract can uncover the mystery that makes 6174 so special.

Received: June 5, 2012

AMS Subject Classification: 11A02, 00A09, 97A20

Key Words and Phrases: 6174, Kaprekar operation, Kaprekar constant, number theory

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Source: International Journal of Pure and Applied Mathematics
ISSN printed version: 1311-8080
ISSN on-line version: 1314-3395
Year: 2012
Volume: 80
Issue: 3