Compare 25639 vs 25642
| Property | 25639 | 25642 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 256391 | 21 × 128211 |
| Prime factorization | 25639 | 2 × 12821 |
| Divisors count | 2 | 4 |
| Divisors | 1, 25639 | 1, 2, 12821, 25642 |
| Number of properties | 4 | 1 |
| Cousin primes (1st member) | 421st | |
| Isolated primes | 1993rd | |
| Primes | 2824th | |
| Semiprimes | 6419th | |
| Sexy primes (2nd member) | 841st | |
| Roman numberals | ||
| Base 2 | 1100100001001112 | 1100100001010102 |
| Base 3 | 10220111213 | 10220112013 |
| Base 4 | 121002134 | 121002224 |
| Base 5 | 13100245 | 13100325 |
| Base 6 | 3144116 | 3144146 |
| Base 7 | 1345157 | 1345217 |
| Base 8 | 620478 | 620528 |
| Base 9 | 381479 | 381519 |
| Base 10 | 2563910 | 2564210 |
| Base 11 | 1829911 | 182a111 |
| Base 12 | 12a0712 | 12a0a12 |
| Base 13 | b89313 | b89613 |
| Base 14 | 94b514 | 94b814 |
| Base 15 | 78e415 | 78e715 |
| Base 16 | 642716 | 642a16 |