Compare 21801 vs 21809
| Property | 21801 | 21809 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 31 × 132 × 431 | 1131 × 1931 |
| Prime factorization | 3 × 13 × 13 × 43 | 113 × 193 |
| Divisors count | 12 | 4 |
| Divisors | 1, 3, 13, 39, 43, 129, 169, 507, 559, 1677, 7267, 21801 | 1, 113, 193, 21809 |
| Number of properties | 0 | 1 |
| Semiprimes | 5510th | |
| Roman numberals | ||
| Base 2 | 1010101001010012 | 1010101001100012 |
| Base 3 | 10022201103 | 10022202023 |
| Base 4 | 111102214 | 111103014 |
| Base 5 | 11442015 | 11442145 |
| Base 6 | 2445336 | 2445456 |
| Base 7 | 1203637 | 1204047 |
| Base 8 | 524518 | 524618 |
| Base 9 | 328139 | 328229 |
| Base 10 | 2180110 | 2180910 |
| Base 11 | 1541a11 | 1542711 |
| Base 12 | 1074912 | 1075512 |
| Base 13 | 9c0013 | 9c0813 |
| Base 14 | 7d3314 | 7d3b14 |
| Base 15 | 66d615 | 66de15 |
| Base 16 | 552916 | 553116 |