Perfect Square
642061448120728428466084637821943089 is a perfect square (801287369250712967 × 801287369250712967)
642061448120728428466084637821943089 is a perfect square (801287369250712967 × 801287369250712967)
642061448120728428466084637821943089 is odd
Previous odd number is 642061448120728428466084637821943087
Next odd number is 642061448120728428466084637821943091
11110111010100000010010110011011000000100110000001010100000010001000010111101100110110111100010110101001011110100110001
264685275382256344254127496604737166982273017655091101646174386361307933076039840624883383533700201315213969
412242903162886843205972796340915207289485699694480046218037827554861921