Compare 28631 vs 28639
| Property | 28631 | 28639 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 286311 | 131 × 22031 |
| Prime factorization | 28631 | 13 × 2203 |
| Divisors count | 2 | 4 |
| Divisors | 1, 28631 | 1, 13, 2203, 28639 |
| Number of properties | 4 | 1 |
| Cousin primes (2nd member) | 454th | |
| Harmonic primes | 1164th | |
| Isolated primes | 2207th | |
| Primes | 3118th | |
| Semiprimes | 7128th | |
| Roman numberals | ||
| Base 2 | 1101111110101112 | 1101111110111112 |
| Base 3 | 11100211023 | 11100212013 |
| Base 4 | 123331134 | 123331334 |
| Base 5 | 14040115 | 14040245 |
| Base 6 | 3403156 | 3403316 |
| Base 7 | 1463217 | 1463327 |
| Base 8 | 677278 | 677378 |
| Base 9 | 432429 | 432519 |
| Base 10 | 2863110 | 2863910 |
| Base 11 | 1a56911 | 1a57611 |
| Base 12 | 1469b12 | 146a712 |
| Base 13 | 1005513 | 1006013 |
| Base 14 | a61114 | a61914 |
| Base 15 | 873b15 | 874415 |
| Base 16 | 6fd716 | 6fdf16 |