Compare 21399 vs 21409
| Property | 21399 | 21409 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 71 × 10191 | 791 × 2711 |
| Prime factorization | 3 × 7 × 1019 | 79 × 271 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 7, 21, 1019, 3057, 7133, 21399 | 1, 79, 271, 21409 |
| Number of properties | 0 | 1 |
| Semiprimes | 5422nd | |
| Roman numberals | ||
| Base 2 | 1010011100101112 | 1010011101000012 |
| Base 3 | 10021001203 | 10021002213 |
| Base 4 | 110321134 | 110322014 |
| Base 5 | 11410445 | 11411145 |
| Base 6 | 2430236 | 2430416 |
| Base 7 | 1162507 | 1162637 |
| Base 8 | 516278 | 516418 |
| Base 9 | 323169 | 323279 |
| Base 10 | 2139910 | 2140910 |
| Base 11 | 1509411 | 150a311 |
| Base 12 | 1047312 | 1048112 |
| Base 13 | 998113 | 998b13 |
| Base 14 | 7b2714 | 7b3314 |
| Base 15 | 651915 | 652415 |
| Base 16 | 539716 | 53a116 |