Factorization
1140 = 2 × 2 × 3 × 5 × 19
1140 has 24 divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140
Sum of all divisors other than 1140:
2220
Sums & differences
Difference of 2 squares: 1140 = 342 - 42 = 622 - 522 = 982 - 922 = 2862 - 2842
Goldbach conjecture: 1140 = 1129 + 11 = 1123 + 17 = 1117 + 23 = 1109 + 31 = 1103 + 37 = 1097 + 43 = 1093 + 47 = 1087 + 53 = 1069 + 71 = 1061 + 79 = . . . (only the first 10 pairs are shown)
