Compare 28720 vs 28729
| Property | 28720 | 28729 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 24 × 51 × 3591 | 287291 |
| Prime factorization | 2 × 2 × 2 × 2 × 5 × 359 | 28729 |
| Divisors count | 20 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 359, 718, 1436, 1795, 2872, 3590, 5744, 7180, 14360, 28720 | 1, 28729 |
| Number of properties | 0 | 5 |
| Isolated primes | 2217th | |
| Primes | 3130th | |
| Pythagorean primes | 1556th | |
| Sexy primes (2nd member) | 921st | |
| Ulam primes | 238th | |
| Roman numberals | ||
| Base 2 | 1110000001100002 | 1110000001110012 |
| Base 3 | 11101012013 | 11101020013 |
| Base 4 | 130003004 | 130003214 |
| Base 5 | 14043405 | 14044045 |
| Base 6 | 3405446 | 3410016 |
| Base 7 | 1465067 | 1465217 |
| Base 8 | 700608 | 700718 |
| Base 9 | 433519 | 433619 |
| Base 10 | 2872010 | 2872910 |
| Base 11 | 1a63a11 | 1a64811 |
| Base 12 | 1475412 | 1476112 |
| Base 13 | 100c313 | 100cc13 |
| Base 14 | a67614 | a68114 |
| Base 15 | 879a15 | 87a415 |
| Base 16 | 703016 | 703916 |