Compare 21386 vs 21387
| Property | 21386 | 21387 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 172 × 371 | 31 × 71291 |
| Prime factorization | 2 × 17 × 17 × 37 | 3 × 7129 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 17, 34, 37, 74, 289, 578, 629, 1258, 10693, 21386 | 1, 3, 7129, 21387 |
| Number of properties | 0 | 1 |
| Semiprimes | 5419th | |
| Roman numberals | ||
| Base 2 | 1010011100010102 | 1010011100010112 |
| Base 3 | 10021000023 | 10021000103 |
| Base 4 | 110320224 | 110320234 |
| Base 5 | 11410215 | 11410225 |
| Base 6 | 2430026 | 2430036 |
| Base 7 | 1162317 | 1162327 |
| Base 8 | 516128 | 516138 |
| Base 9 | 323029 | 323039 |
| Base 10 | 2138610 | 2138710 |
| Base 11 | 1508211 | 1508311 |
| Base 12 | 1046212 | 1046312 |
| Base 13 | 997113 | 997213 |
| Base 14 | 7b1814 | 7b1914 |
| Base 15 | 650b15 | 650c15 |
| Base 16 | 538a16 | 538b16 |