Compare 21528 vs 21529
| Property | 21528 | 21529 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 23 × 32 × 131 × 231 | 215291 |
| Prime factorization | 2 × 2 × 2 × 3 × 3 × 13 × 23 | 21529 |
| Divisors count | 48 | 2 |
| Divisors | 1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 36, 39, 46, 52, 69, 72, 78, 92, 104, 117, 138, 156, 184, 207, 234, 276, 299, 312, 414, 468, 552, 598, 828, 897, 936, 1196, 1656, 1794, 2392, 2691, 3588, 5382, 7176, 10764, 21528 | 1, 21529 |
| Number of properties | 0 | 9 |
| Additive primes | 1121st | |
| Chen primes | 1185th | |
| Isolated primes | 1688th | |
| Lucky primes | 391st | |
| Primes | 2417th | |
| Pythagorean primes | 1198th | |
| Sexy primes (2nd member) | 735th | |
| Sexy prime triplets (3rd member) | 200th | |
| Super primes | 359th | |
| Roman numberals | ||
| Base 2 | 1010100000110002 | 1010100000110012 |
| Base 3 | 10021121003 | 10021121013 |
| Base 4 | 111001204 | 111001214 |
| Base 5 | 11421035 | 11421045 |
| Base 6 | 2434006 | 2434016 |
| Base 7 | 1165237 | 1165247 |
| Base 8 | 520308 | 520318 |
| Base 9 | 324709 | 324719 |
| Base 10 | 2152810 | 2152910 |
| Base 11 | 151a111 | 151a211 |
| Base 12 | 1056012 | 1056112 |
| Base 13 | 9a5013 | 9a5113 |
| Base 14 | 7bba14 | 7bbb14 |
| Base 15 | 65a315 | 65a415 |
| Base 16 | 541816 | 541916 |