Compare 21402 vs 21409
| Property | 21402 | 21409 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 21 × 32 × 291 × 411 | 791 × 2711 |
| Prime factorization | 2 × 3 × 3 × 29 × 41 | 79 × 271 |
| Divisors count | 24 | 4 |
| Divisors | 1, 2, 3, 6, 9, 18, 29, 41, 58, 82, 87, 123, 174, 246, 261, 369, 522, 738, 1189, 2378, 3567, 7134, 10701, 21402 | 1, 79, 271, 21409 |
| Number of properties | 0 | 1 |
| Semiprimes | 5422nd | |
| Roman numberals | ||
| Base 2 | 1010011100110102 | 1010011101000012 |
| Base 3 | 10021002003 | 10021002213 |
| Base 4 | 110321224 | 110322014 |
| Base 5 | 11411025 | 11411145 |
| Base 6 | 2430306 | 2430416 |
| Base 7 | 1162537 | 1162637 |
| Base 8 | 516328 | 516418 |
| Base 9 | 323209 | 323279 |
| Base 10 | 2140210 | 2140910 |
| Base 11 | 1509711 | 150a311 |
| Base 12 | 1047612 | 1048112 |
| Base 13 | 998413 | 998b13 |
| Base 14 | 7b2a14 | 7b3314 |
| Base 15 | 651c15 | 652415 |
| Base 16 | 539a16 | 53a116 |