Compare 20989 vs 20991
| Property | 20989 | 20991 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 1391 × 1511 | 31 × 69971 |
| Prime factorization | 139 × 151 | 3 × 6997 |
| Divisors count | 4 | 4 |
| Divisors | 1, 139, 151, 20989 | 1, 3, 6997, 20991 |
| Number of properties | 1 | 1 |
| Semiprimes | 5324th | 5325th |
| Roman numberals | ||
| Base 2 | 1010001111111012 | 1010001111111112 |
| Base 3 | 10012101013 | 10012101103 |
| Base 4 | 110133314 | 110133334 |
| Base 5 | 11324245 | 11324315 |
| Base 6 | 2411016 | 2411036 |
| Base 7 | 1151237 | 1151257 |
| Base 8 | 507758 | 507778 |
| Base 9 | 317119 | 317139 |
| Base 10 | 2098910 | 2099110 |
| Base 11 | 1485111 | 1485311 |
| Base 12 | 1019112 | 1019312 |
| Base 13 | 972713 | 972913 |
| Base 14 | 791314 | 791514 |
| Base 15 | 634415 | 634615 |
| Base 16 | 51fd16 | 51ff16 |