Perfect Square
640678888978811968197199903225 is a perfect square (800424193149365 × 800424193149365)
640678888978811968197199903225 is a perfect square (800424193149365 × 800424193149365)
640678888978811968197199903225 is odd
Previous odd number is 640678888978811968197199903223
Next odd number is 640678888978811968197199903227
1000 0001 0110 0010 0101 0010 0111 1110 0100 1101 0010 0100 0100 1100 0111 0001 0100 0001 1000 0000 1011 1011 1001 1111 1001
262979103999328915193603432198647315520801393958345498487488367345303986610103413354515625
410469438783124871649419666509877502369031395431949365400625