Compare 20989 vs 20990
| Property | 20989 | 20990 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 1391 × 1511 | 21 × 51 × 20991 |
| Prime factorization | 139 × 151 | 2 × 5 × 2099 |
| Divisors count | 4 | 8 |
| Divisors | 1, 139, 151, 20989 | 1, 2, 5, 10, 2099, 4198, 10495, 20990 |
| Number of properties | 1 | 0 |
| Semiprimes | 5324th | |
| Roman numberals | ||
| Base 2 | 1010001111111012 | 1010001111111102 |
| Base 3 | 10012101013 | 10012101023 |
| Base 4 | 110133314 | 110133324 |
| Base 5 | 11324245 | 11324305 |
| Base 6 | 2411016 | 2411026 |
| Base 7 | 1151237 | 1151247 |
| Base 8 | 507758 | 507768 |
| Base 9 | 317119 | 317129 |
| Base 10 | 2098910 | 2099010 |
| Base 11 | 1485111 | 1485211 |
| Base 12 | 1019112 | 1019212 |
| Base 13 | 972713 | 972813 |
| Base 14 | 791314 | 791414 |
| Base 15 | 634415 | 634515 |
| Base 16 | 51fd16 | 51fe16 |