Compare 81845 vs 81853
| Property | 81845 | 81853 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 163691 | 818531 |
| Prime factorization | 5 × 16369 | 81853 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 16369, 81845 | 1, 81853 |
| Number of properties | 1 | 4 |
| Isolated primes | 5947th | |
| Primes | 8004th | |
| Pythagorean primes | 3989th | |
| Semiprimes | 19321st | |
| Sexy primes (2nd member) | 2078th | |
| Roman numberals | ||
| Base 2 | 100111111101101012 | 100111111101111012 |
| Base 3 | 110110210223 | 110110211213 |
| Base 4 | 1033323114 | 1033323314 |
| Base 5 | 101043405 | 101044035 |
| Base 6 | 14305256 | 14305416 |
| Base 7 | 4604217 | 4604327 |
| Base 8 | 2376658 | 2376758 |
| Base 9 | 1342389 | 1342479 |
| Base 10 | 8184510 | 8185310 |
| Base 11 | 5654511 | 5655211 |
| Base 12 | 3b44512 | 3b45112 |
| Base 13 | 2b33a13 | 2b34513 |
| Base 14 | 21b8114 | 21b8914 |
| Base 15 | 193b515 | 193bd15 |
| Base 16 | 13fb516 | 13fbd16 |