Compare 18979 vs 18987
| Property | 18979 | 18987 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 189791 | 31 × 63291 |
| Prime factorization | 18979 | 3 × 6329 |
| Divisors count | 2 | 4 |
| Divisors | 1, 18979 | 1, 3, 6329, 18987 |
| Number of properties | 5 | 1 |
| Isolated primes | 1505th | |
| Long primes | 826th | |
| Lucky primes | 351st | |
| Primes | 2158th | |
| Semiprimes | 4844th | |
| Sexy primes (2nd member) | 660th | |
| Roman numberals | ||
| Base 2 | 1001010001000112 | 1001010001010112 |
| Base 3 | 2220002213 | 2220010203 |
| Base 4 | 102202034 | 102202234 |
| Base 5 | 11014045 | 11014225 |
| Base 6 | 2235116 | 2235236 |
| Base 7 | 1062227 | 1062337 |
| Base 8 | 450438 | 450538 |
| Base 9 | 280279 | 280369 |
| Base 10 | 1897910 | 1898710 |
| Base 11 | 1329411 | 132a111 |
| Base 12 | ab9712 | aba312 |
| Base 13 | 883c13 | 884713 |
| Base 14 | 6cb914 | 6cc314 |
| Base 15 | 595415 | 595c15 |
| Base 16 | 4a2316 | 4a2b16 |