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650000 - 659999

650501

12 + 22 + 32 + ... + 6505012 = 91753713935117751, a sum with odd digits (the 6th 17-digit sum, and there are such 6 sums in all.)

Page of Squares : First Upload June 22, 2013 ; Last Revised June 22, 2013
by Yoshio Mimura, Kobe, Japan

650839

The sum of (22x + 13)2 for 13 <= 22x + 13 <=650839.

Page of Squares : First Upload June 22, 2013 ; Last Revised June 22, 2013
by Yoshio Mimura, Kobe, Japan

651249

651249 = 8072, a square with different digits.

Page of Squares : First Upload June 22, 2013 ; Last Revised June 22, 2013
by Yoshio Mimura, Kobe, Japan

651434

6514342 = 10350*10351 + 10352*10353 + 10354*10355 + 10356*10357 + ... + 15402*15403.

Page of Squares : First Upload June 22, 2013 ; Last Revised June 22, 2013
by Yoshio Mimura, Kobe, Japan

655350

6553502 = 12039*12040 + 12041*12042 + 12043*12044 + 12045*12046 + ... + 16287*16288.

Page of Squares : First Upload June 22, 2013 ; Last Revised June 22, 2013
by Yoshio Mimura, Kobe, Japan

658188

6581882 = 433211443344, a square every digit of which is non-zero and smaller than 5.

Page of Squares : First Upload September 28, 2013 ; Last Revised September 28, 2013
by Yoshio Mimura, Kobe, Japan

6583576

6583572 = 433433939449, a square with 3 kinds of digits.

Page of Squares : First Upload June 22, 2013 ; Last Revised June 22, 2013
by Yoshio Mimura, Kobe, Japan

658944

106 + 658944 = 12882, 106 - 658944 = 5842.

Page of Squares : First Upload June 22, 2013 ; Last Revised June 22, 2013
by Yoshio Mimura, Kobe, Japan

659124

6591242 = 434444447376, a square contains repeating digits.

Page of Squares : First Upload September 28, 2013 ; Last Revised September 28, 2013
by Yoshio Mimura, Kobe, Japan