Perfect Square
198991628858731246707876100 is a perfect square (14106439269310 × 14106439269310)
198991628858731246707876100 is a perfect square (14106439269310 × 14106439269310)
10100100 10011010 00011101 11010000 11010101 00110100 11111110 11011010 00111101 00100001 00000100
198991628858731246707876100 is even
Previous even number is 198991628858731246707876098
Next even number is 198991628858731246707876102
7879604525138637352919257425551198343416823338871651526414806298248025081000000