Factorization
3240 = 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5
3240 has 40 divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240
Sum of all divisors other than 3240:
7650
Sums & differences
Sum of 2 squares: 3240 = 542 + 182
Difference of 2 squares: 3240 = 572 - 32 = 632 - 272 = 692 - 392 = 912 - 712 = 992 - 812 = 1412 - 1292 = 1672 - 1572 = 2732 - 2672 = 4072 - 4032 = 8112 - 8092
Goldbach conjecture: 3240 = 3229 + 11 = 3221 + 19 = 3217 + 23 = 3209 + 31 = 3203 + 37 = 3187 + 53 = 3181 + 59 = 3169 + 71 = 3167 + 73 = 3137 + 103 = . . . (only the first 10 pairs are shown)