Compare 21405 vs 21406
| Property | 21405 | 21406 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 4 |
| Total factors | 3 | 4 |
| Prime factorization | 31 × 51 × 14271 | 21 × 71 × 111 × 1391 |
| Prime factorization | 3 × 5 × 1427 | 2 × 7 × 11 × 139 |
| Divisors count | 8 | 16 |
| Divisors | 1, 3, 5, 15, 1427, 4281, 7135, 21405 | 1, 2, 7, 11, 14, 22, 77, 139, 154, 278, 973, 1529, 1946, 3058, 10703, 21406 |
| Number of properties | 0 | 0 |
| Roman numberals | ||
| Base 2 | 1010011100111012 | 1010011100111102 |
| Base 3 | 10021002103 | 10021002113 |
| Base 4 | 110321314 | 110321324 |
| Base 5 | 11411105 | 11411115 |
| Base 6 | 2430336 | 2430346 |
| Base 7 | 1162567 | 1162607 |
| Base 8 | 516358 | 516368 |
| Base 9 | 323239 | 323249 |
| Base 10 | 2140510 | 2140610 |
| Base 11 | 1509a11 | 150a011 |
| Base 12 | 1047912 | 1047a12 |
| Base 13 | 998713 | 998813 |
| Base 14 | 7b2d14 | 7b3014 |
| Base 15 | 652015 | 652115 |
| Base 16 | 539d16 | 539e16 |