Compare 81131 vs 81143
| Property | 81131 | 81143 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 811311 | 531 × 15311 |
| Prime factorization | 81131 | 53 × 1531 |
| Divisors count | 2 | 4 |
| Divisors | 1, 81131 | 1, 53, 1531, 81143 |
| Number of properties | 4 | 1 |
| Harmonic primes | 2996th | |
| Isolated primes | 5897th | |
| Primes | 7942nd | |
| Semiprimes | 19168th | |
| Sophie germain primes | 987th | |
| Roman numberals | ||
| Base 2 | 100111100111010112 | 100111100111101112 |
| Base 3 | 110100212123 | 110100220223 |
| Base 4 | 1033032234 | 1033033134 |
| Base 5 | 100440115 | 100440335 |
| Base 6 | 14233356 | 14233556 |
| Base 7 | 4553517 | 4553667 |
| Base 8 | 2363538 | 2363678 |
| Base 9 | 1332559 | 1332689 |
| Base 10 | 8113110 | 8114310 |
| Base 11 | 55a5611 | 55a6711 |
| Base 12 | 3ab4b12 | 3ab5b12 |
| Base 13 | 2ac0b13 | 2ac1a13 |
| Base 14 | 217d114 | 217dd14 |
| Base 15 | 1908b15 | 1909815 |
| Base 16 | 13ceb16 | 13cf716 |