Compare 15420 vs 15421
| Property | 15420 | 15421 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 22 × 31 × 51 × 2571 | 71 × 22031 |
| Prime factorization | 2 × 2 × 3 × 5 × 257 | 7 × 2203 |
| Divisors count | 24 | 4 |
| Divisors | 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1028, 1285, 1542, 2570, 3084, 3855, 5140, 7710, 15420 | 1, 7, 2203, 15421 |
| Number of properties | 0 | 1 |
| Semiprimes | 3962nd | |
| Roman numberals | ||
| Base 2 | 111100001111002 | 111100001111012 |
| Base 3 | 2100110103 | 2100110113 |
| Base 4 | 33003304 | 33003314 |
| Base 5 | 4431405 | 4431415 |
| Base 6 | 1552206 | 1552216 |
| Base 7 | 626467 | 626507 |
| Base 8 | 360748 | 360758 |
| Base 9 | 231339 | 231349 |
| Base 10 | 1542010 | 1542110 |
| Base 11 | 1064911 | 1064a11 |
| Base 12 | 8b1012 | 8b1112 |
| Base 13 | 703213 | 703313 |
| Base 14 | 589614 | 589714 |
| Base 15 | 488015 | 488115 |
| Base 16 | 3c3c16 | 3c3d16 |