Compare 81853 vs 81863
| Property | 81853 | 81863 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 818531 | 711 × 11531 |
| Prime factorization | 81853 | 71 × 1153 |
| Divisors count | 2 | 4 |
| Divisors | 1, 81853 | 1, 71, 1153, 81863 |
| Number of properties | 4 | 1 |
| Isolated primes | 5947th | |
| Primes | 8004th | |
| Pythagorean primes | 3989th | |
| Semiprimes | 19326th | |
| Sexy primes (2nd member) | 2078th | |
| Roman numberals | ||
| Base 2 | 100111111101111012 | 100111111110001112 |
| Base 3 | 110110211213 | 110110212223 |
| Base 4 | 1033323314 | 1033330134 |
| Base 5 | 101044035 | 101044235 |
| Base 6 | 14305416 | 14305556 |
| Base 7 | 4604327 | 4604457 |
| Base 8 | 2376758 | 2377078 |
| Base 9 | 1342479 | 1342589 |
| Base 10 | 8185310 | 8186310 |
| Base 11 | 5655211 | 5656111 |
| Base 12 | 3b45112 | 3b45b12 |
| Base 13 | 2b34513 | 2b35213 |
| Base 14 | 21b8914 | 21b9514 |
| Base 15 | 193bd15 | 193c815 |
| Base 16 | 13fbd16 | 13fc716 |