Perfect Square
47991494463691321 is a perfect square (219069611 × 219069611)
47991494463691321 is a perfect square (219069611 × 219069611)
10101010 10000000 00000010 10001011 10111111 10011010 00111001
47991494463691321 is odd
Previous odd number is 47991494463691319
Next odd number is 47991494463691323