Compare 2990 vs 2991
| Property | 2990 | 2991 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 51 × 131 × 231 | 31 × 9971 |
| Prime factorization | 2 × 5 × 13 × 23 | 3 × 997 |
| Divisors count | 16 | 4 |
| Divisors | 1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990 | 1, 3, 997, 2991 |
| Number of properties | 0 | 1 |
| Semiprimes | 838th | |
| Roman numberals | MMCMXC | MMCMXCI |
| Base 2 | 1011101011102 | 1011101011112 |
| Base 3 | 110022023 | 110022103 |
| Base 4 | 2322324 | 2322334 |
| Base 5 | 434305 | 434315 |
| Base 6 | 215026 | 215036 |
| Base 7 | 115017 | 115027 |
| Base 8 | 56568 | 56578 |
| Base 9 | 40829 | 40839 |
| Base 10 | 299010 | 299110 |
| Base 11 | 227911 | 227a11 |
| Base 12 | 189212 | 189312 |
| Base 13 | 149013 | 149113 |
| Base 14 | 113814 | 113914 |
| Base 15 | d4515 | d4615 |
| Base 16 | bae16 | baf16 |