Compare 2520 vs 2531
| Property | 2520 | 2531 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 23 × 32 × 51 × 71 | 25311 |
| Prime factorization | 2 × 2 × 2 × 3 × 3 × 5 × 7 | 2531 |
| Divisors count | 48 | 2 |
| Divisors | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520 | 1, 2531 |
| Number of properties | 0 | 7 |
| Additive primes | 193rd | |
| Centered decagonal primes | 16th | |
| Chen primes | 223rd | |
| Good primes | 72nd | |
| Harmonic primes | 139th | |
| Isolated primes | 227th | |
| Primes | 370th | |
| Roman numberals | MMDXX | MMDXXXI |
| Base 2 | 1001110110002 | 1001111000112 |
| Base 3 | 101101003 | 101102023 |
| Base 4 | 2131204 | 2132034 |
| Base 5 | 400405 | 401115 |
| Base 6 | 154006 | 154156 |
| Base 7 | 102307 | 102447 |
| Base 8 | 47308 | 47438 |
| Base 9 | 34109 | 34229 |
| Base 10 | 252010 | 253110 |
| Base 11 | 199111 | 19a111 |
| Base 12 | 156012 | 156b12 |
| Base 13 | 11bb13 | 11c913 |
| Base 14 | cc014 | ccb14 |
| Base 15 | b3015 | b3b15 |
| Base 16 | 9d816 | 9e316 |