Compare 21387 vs 21398
| Property | 21387 | 21398 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 71291 | 21 × 131 × 8231 |
| Prime factorization | 3 × 7129 | 2 × 13 × 823 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 7129, 21387 | 1, 2, 13, 26, 823, 1646, 10699, 21398 |
| Number of properties | 1 | 0 |
| Semiprimes | 5419th | |
| Roman numberals | ||
| Base 2 | 1010011100010112 | 1010011100101102 |
| Base 3 | 10021000103 | 10021001123 |
| Base 4 | 110320234 | 110321124 |
| Base 5 | 11410225 | 11410435 |
| Base 6 | 2430036 | 2430226 |
| Base 7 | 1162327 | 1162467 |
| Base 8 | 516138 | 516268 |
| Base 9 | 323039 | 323159 |
| Base 10 | 2138710 | 2139810 |
| Base 11 | 1508311 | 1509311 |
| Base 12 | 1046312 | 1047212 |
| Base 13 | 997213 | 998013 |
| Base 14 | 7b1914 | 7b2614 |
| Base 15 | 650c15 | 651815 |
| Base 16 | 538b16 | 539616 |