1208700
12087002 = 7517*7518 + 7519*7520 + 7521*7522 + 7523*7524 + ... + 20945*20946.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1209992
12099922 = 9166*9167 + 9168*9169 + 9170*9171 + 9172*9173 + ... + 21218*21219.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1212201
1212201 = 11012, a square with 3 kinds of digits.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1216020
12160202 = 29226*29227 + 29228*29229 + 29230*29231 + 29232*29233 + ... + 32342*32343.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1218331
12 + 22 + 32 + ... + 12183312 = 602802666066802066, the second 18-digit sum with even digits (there are 3 sums in all.)
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1222774
12227742 = 17042*17043 + 17044*17045 + 17046*17047 + 17048*17049 + ... + 24054*24055.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1229634
12296342 = 1511999773956, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1231256
12312562 = 1515991337536, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1231714
12317142 = 1517119377796, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1233335
12333352 = 1521115222225, a square with 3 kinds of digits.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1233375
12333752 = 1521213890625, and 1521 = 392, 213890625 = 146252.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1234321
1234321 = 11112, a palindromic square.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1235112
12351122 = 20439*20440 + 20441*20442 + 20443*20444 + 20445*20446 + ... + 26055*26056.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1237544
12375442 = 1531515151936, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1237634
12376342 = 1531737917956, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1238376
12383762 = 1533575117376, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1238769
1238769 = 11132, a square with different digits.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1240956
12409562 = 1539971793936, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1242426
12424262 = 15842*15843 + 15844*15845 + 15846*15847 + 15848*15849 + ... + 23654*23655.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1244334
12443342 = 13150*13151 + 13152*13153 + 13154*13155 + 13156*13157 + ... + 22612*22613.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1244502
12445022 = 66854*66855 + 66856*66857 + 66858*66859 + 66860*66861 + ... + 67538*67539.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1245454
12454542 = 1551155666116, a square with 3 kinds of digits.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1247689
1247689 = 11172, a sqaure with different digits.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1248665
12486652 is the sum of (13x + 5)2 for 13x + 5 <= 39317.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1249066
12490662 = 7685*7686 + 7687*7688 + 7689*7690 + 7691*7692 + ... + 21409*21410.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1249666
12496662 = 1561665111556, a square with 3 kinds of digits.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1250766
12507662 = 8992*8993 + 8994*8995 + 8996*8997 + 8998*8999 + ... + 21624*21625.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1252264
12522642 = 1568165125696, and 156816 = 3962, 5125696 = 22642.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1252264
12528722 = 4! + 5! + 7! + 12! + 14! + 14! + 14! + 15!.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1253624
12536242 = 1571573133376, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1253786
12537862 = 1571979333796, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1254424
12544242 = 1573579571776, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1255914
12559142 = 1577319975396, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1255944
12559442 = 1577395331136, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1262456
12624562 = 1593795151936, a square with odd digits except the last digit 6. Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1264557
(12645572 +1) = (22 + 1)(82 + 1)(122 + 1)(142 + 1)(182 + 1)(232 + 1).
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1264586
12645862 = 1599177751396, a square with odd digits except the last digit 6.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1265908
12659082 = 13636*13637 + 13638*13639 + 13640*13641 + 13642*13643 + ... + 22988*22989.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1267840
12678402 = 123624*123625 + 123626*123627 + 123628*123629 + 123630*123631 + ... + 123832*123833.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1270869
12708692 = 1615108015161, a palindromic square.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1274448
A cubic polynomial:
(X + 7042)(X + 8612)(X + 10082) = X3 + 15012X2 + 12744482X + 6109931522.
by Yoshio Mimura, Kobe, Japan
1285200
12852002 = 15604*15605 + 15606*15607 + 15608*15609 + 15610*15611 + ... + 23932*23933.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1293970
12939702 = 9750*9751 + 9752*9753 + 9754*9755 + 9756*9757 + ... + 22220*22221.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan
1296625
12966252 = 1681236390625, and 1681 = 412, 236390625 = 153752.
Page of Squares : First Upload October 19, 2013 ; Last Revised October 19, 2013by Yoshio Mimura, Kobe, Japan