Perfect Square
81094542871425722500 is a perfect square (9005250850 × 9005250850)
81094542871425722500 is a perfect square (9005250850 × 9005250850)
81094542871425722500 is even
Previous even number is 81094542871425722498
Next even number is 81094542871425722502
533304060203482792985511272128030396267585453868265625000000
1000110010101101001101100010001010110010010000001000010100010000100