Compare 28729 vs 28731
| Property | 28729 | 28731 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 287291 | 31 × 611 × 1571 |
| Prime factorization | 28729 | 3 × 61 × 157 |
| Divisors count | 2 | 8 |
| Divisors | 1, 28729 | 1, 3, 61, 157, 183, 471, 9577, 28731 |
| Number of properties | 5 | 0 |
| Isolated primes | 2217th | |
| Primes | 3130th | |
| Pythagorean primes | 1556th | |
| Sexy primes (2nd member) | 921st | |
| Ulam primes | 238th | |
| Roman numberals | ||
| Base 2 | 1110000001110012 | 1110000001110112 |
| Base 3 | 11101020013 | 11101020103 |
| Base 4 | 130003214 | 130003234 |
| Base 5 | 14044045 | 14044115 |
| Base 6 | 3410016 | 3410036 |
| Base 7 | 1465217 | 1465237 |
| Base 8 | 700718 | 700738 |
| Base 9 | 433619 | 433639 |
| Base 10 | 2872910 | 2873110 |
| Base 11 | 1a64811 | 1a64a11 |
| Base 12 | 1476112 | 1476312 |
| Base 13 | 100cc13 | 1010113 |
| Base 14 | a68114 | a68314 |
| Base 15 | 87a415 | 87a615 |
| Base 16 | 703916 | 703b16 |