Compare 166981 vs 166987
| Property | 166981 | 166987 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 371 × 45131 | 1669871 |
| Prime factorization | 37 × 4513 | 166987 |
| Divisors count | 4 | 2 |
| Divisors | 1, 37, 4513, 166981 | 1, 166987 |
| Number of properties | 1 | 4 |
| Additive primes | 6238th | |
| Chen primes | 6480th | |
| Isolated primes | 11533rd | |
| Primes | 15254th | |
| Semiprimes | 38107th | |
| Roman numberals | ||
| Base 2 | 1010001100010001012 | 1010001100010010112 |
| Base 3 | 221110011113 | 221110012013 |
| Base 4 | 2203010114 | 2203010234 |
| Base 5 | 203204115 | 203204225 |
| Base 6 | 33250216 | 33250316 |
| Base 7 | 12635537 | 12635627 |
| Base 8 | 5061058 | 5061138 |
| Base 9 | 2740449 | 2740519 |
| Base 10 | 16698110 | 16698710 |
| Base 11 | 10450111 | 10450711 |
| Base 12 | 8077112 | 8077712 |
| Base 13 | 5b00913 | 5b01213 |
| Base 14 | 44bd314 | 44bd914 |
| Base 15 | 3472115 | 3472715 |
| Base 16 | 28c4516 | 28c4b16 |