Compare 81123 vs 81131
| Property | 81123 | 81131 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 71 × 38631 | 811311 |
| Prime factorization | 3 × 7 × 3863 | 81131 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 7, 21, 3863, 11589, 27041, 81123 | 1, 81131 |
| Number of properties | 0 | 4 |
| Harmonic primes | 2996th | |
| Isolated primes | 5897th | |
| Primes | 7942nd | |
| Sophie germain primes | 987th | |
| Roman numberals | ||
| Base 2 | 100111100111000112 | 100111100111010112 |
| Base 3 | 110100211203 | 110100212123 |
| Base 4 | 1033032034 | 1033032234 |
| Base 5 | 100434435 | 100440115 |
| Base 6 | 14233236 | 14233356 |
| Base 7 | 4553407 | 4553517 |
| Base 8 | 2363438 | 2363538 |
| Base 9 | 1332469 | 1332559 |
| Base 10 | 8112310 | 8113110 |
| Base 11 | 55a4911 | 55a5611 |
| Base 12 | 3ab4312 | 3ab4b12 |
| Base 13 | 2ac0313 | 2ac0b13 |
| Base 14 | 217c714 | 217d114 |
| Base 15 | 1908315 | 1908b15 |
| Base 16 | 13ce316 | 13ceb16 |