Compare 28727 vs 28729
| Property | 28727 | 28729 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 231 × 12491 | 287291 |
| Prime factorization | 23 × 1249 | 28729 |
| Divisors count | 4 | 2 |
| Divisors | 1, 23, 1249, 28727 | 1, 28729 |
| Number of properties | 1 | 5 |
| Isolated primes | 2217th | |
| Primes | 3130th | |
| Pythagorean primes | 1556th | |
| Semiprimes | 7146th | |
| Sexy primes (2nd member) | 921st | |
| Ulam primes | 238th | |
| Roman numberals | ||
| Base 2 | 1110000001101112 | 1110000001110012 |
| Base 3 | 11101012223 | 11101020013 |
| Base 4 | 130003134 | 130003214 |
| Base 5 | 14044025 | 14044045 |
| Base 6 | 3405556 | 3410016 |
| Base 7 | 1465167 | 1465217 |
| Base 8 | 700678 | 700718 |
| Base 9 | 433589 | 433619 |
| Base 10 | 2872710 | 2872910 |
| Base 11 | 1a64611 | 1a64811 |
| Base 12 | 1475b12 | 1476112 |
| Base 13 | 100ca13 | 100cc13 |
| Base 14 | a67d14 | a68114 |
| Base 15 | 87a215 | 87a415 |
| Base 16 | 703716 | 703916 |