Compare 21405 vs 21415
| Property | 21405 | 21415 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 51 × 14271 | 51 × 42831 |
| Prime factorization | 3 × 5 × 1427 | 5 × 4283 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 5, 15, 1427, 4281, 7135, 21405 | 1, 5, 4283, 21415 |
| Number of properties | 0 | 1 |
| Semiprimes | 5423rd | |
| Roman numberals | ||
| Base 2 | 1010011100111012 | 1010011101001112 |
| Base 3 | 10021002103 | 10021010113 |
| Base 4 | 110321314 | 110322134 |
| Base 5 | 11411105 | 11411305 |
| Base 6 | 2430336 | 2430516 |
| Base 7 | 1162567 | 1163027 |
| Base 8 | 516358 | 516478 |
| Base 9 | 323239 | 323349 |
| Base 10 | 2140510 | 2141510 |
| Base 11 | 1509a11 | 150a911 |
| Base 12 | 1047912 | 1048712 |
| Base 13 | 998713 | 999413 |
| Base 14 | 7b2d14 | 7b3914 |
| Base 15 | 652015 | 652a15 |
| Base 16 | 539d16 | 53a716 |