Compare 21380 vs 21381
| Property | 21380 | 21381 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 51 × 10691 | 31 × 71271 |
| Prime factorization | 2 × 2 × 5 × 1069 | 3 × 7127 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 5, 10, 20, 1069, 2138, 4276, 5345, 10690, 21380 | 1, 3, 7127, 21381 |
| Number of properties | 0 | 1 |
| Semiprimes | 5417th | |
| Roman numberals | ||
| Base 2 | 1010011100001002 | 1010011100001012 |
| Base 3 | 10020222123 | 10020222203 |
| Base 4 | 110320104 | 110320114 |
| Base 5 | 11410105 | 11410115 |
| Base 6 | 2425526 | 2425536 |
| Base 7 | 1162227 | 1162237 |
| Base 8 | 516048 | 516058 |
| Base 9 | 322859 | 322869 |
| Base 10 | 2138010 | 2138110 |
| Base 11 | 1507711 | 1507811 |
| Base 12 | 1045812 | 1045912 |
| Base 13 | 996813 | 996913 |
| Base 14 | 7b1214 | 7b1314 |
| Base 15 | 650515 | 650615 |
| Base 16 | 538416 | 538516 |