Compare 990137 vs 990142
| Property | 990137 | 990142 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 9901371 | 21 × 4950711 |
| Prime factorization | 990137 | 2 × 495071 |
| Divisors count | 2 | 4 |
| Divisors | 1, 990137 | 1, 2, 495071, 990142 |
| Number of properties | 4 | 1 |
| Additive primes | 29857th | |
| Chen primes | 29705th | |
| Isolated primes | 61581st | |
| Primes | 77784th | |
| Semiprimes | 208065th | |
| Roman numberals | ||
| Base 2 | 111100011011101110012 | 111100011011101111102 |
| Base 3 | 12120220122023 | 12120220122213 |
| Base 4 | 33012323214 | 33012323324 |
| Base 5 | 2231410225 | 2231410325 |
| Base 6 | 331155456 | 331155546 |
| Base 7 | 112624617 | 112624667 |
| Base 8 | 36156718 | 36156768 |
| Base 9 | 17681829 | 17681879 |
| Base 10 | 99013710 | 99014210 |
| Base 11 | 6169a511 | 6169aa11 |
| Base 12 | 3b8bb512 | 3b8bba12 |
| Base 13 | 2888a513 | 2888aa13 |
| Base 14 | 1baba114 | 1baba614 |
| Base 15 | 14859215 | 14859715 |
| Base 16 | f1bb916 | f1bbe16 |