Compare 72640 vs 72647
| Property | 72640 | 72647 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 8 | 1 |
| Prime factorization | 26 × 51 × 2271 | 726471 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 5 × 227 | 72647 |
| Divisors count | 28 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 227, 320, 454, 908, 1135, 1816, 2270, 3632, 4540, 7264, 9080, 14528, 18160, 36320, 72640 | 1, 72647 |
| Number of properties | 0 | 8 |
| Chen primes | 3274th | |
| Cousin primes (2nd member) | 933rd | |
| Harmonic primes | 2715th | |
| Left-truncatable primes | 276th | |
| Long primes | 2737th | |
| Primes | 7183rd | |
| Prime triplets (2nd member) | 397th | |
| Twin primes (1st member) | 940th | |
| Roman numberals | ||
| Base 2 | 100011011110000002 | 100011011110001112 |
| Base 3 | 102001221013 | 102001221223 |
| Base 4 | 1012330004 | 1012330134 |
| Base 5 | 43110305 | 43110425 |
| Base 6 | 13201446 | 13201556 |
| Base 7 | 4215317 | 4215417 |
| Base 8 | 2157008 | 2157078 |
| Base 9 | 1205719 | 1205789 |
| Base 10 | 7264010 | 7264710 |
| Base 11 | 4a63711 | 4a64311 |
| Base 12 | 3605412 | 3605b12 |
| Base 13 | 270a913 | 270b313 |
| Base 14 | 1c68814 | 1c69114 |
| Base 15 | 167ca15 | 167d215 |
| Base 16 | 11bc016 | 11bc716 |