Compare 20985 vs 20987
| Property | 20985 | 20987 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 51 × 13991 | 311 × 6771 |
| Prime factorization | 3 × 5 × 1399 | 31 × 677 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 5, 15, 1399, 4197, 6995, 20985 | 1, 31, 677, 20987 |
| Number of properties | 0 | 1 |
| Semiprimes | 5323rd | |
| Roman numberals | ||
| Base 2 | 1010001111110012 | 1010001111110112 |
| Base 3 | 10012100203 | 10012100223 |
| Base 4 | 110133214 | 110133234 |
| Base 5 | 11324205 | 11324225 |
| Base 6 | 2410536 | 2410556 |
| Base 7 | 1151167 | 1151217 |
| Base 8 | 507718 | 507738 |
| Base 9 | 317069 | 317089 |
| Base 10 | 2098510 | 2098710 |
| Base 11 | 1484811 | 1484a11 |
| Base 12 | 1018912 | 1018b12 |
| Base 13 | 972313 | 972513 |
| Base 14 | 790d14 | 791114 |
| Base 15 | 634015 | 634215 |
| Base 16 | 51f916 | 51fb16 |