Compare 21381 vs 21385
| Property | 21381 | 21385 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 4 |
| Prime factorization | 31 × 71271 | 51 × 71 × 131 × 471 |
| Prime factorization | 3 × 7127 | 5 × 7 × 13 × 47 |
| Divisors count | 4 | 16 |
| Divisors | 1, 3, 7127, 21381 | 1, 5, 7, 13, 35, 47, 65, 91, 235, 329, 455, 611, 1645, 3055, 4277, 21385 |
| Number of properties | 1 | 0 |
| Semiprimes | 5417th | |
| Roman numberals | ||
| Base 2 | 1010011100001012 | 1010011100010012 |
| Base 3 | 10020222203 | 10021000013 |
| Base 4 | 110320114 | 110320214 |
| Base 5 | 11410115 | 11410205 |
| Base 6 | 2425536 | 2430016 |
| Base 7 | 1162237 | 1162307 |
| Base 8 | 516058 | 516118 |
| Base 9 | 322869 | 323019 |
| Base 10 | 2138110 | 2138510 |
| Base 11 | 1507811 | 1508111 |
| Base 12 | 1045912 | 1046112 |
| Base 13 | 996913 | 997013 |
| Base 14 | 7b1314 | 7b1714 |
| Base 15 | 650615 | 650a15 |
| Base 16 | 538516 | 538916 |