Compare 21521 vs 21527
| Property | 21521 | 21527 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 215211 | 111 × 191 × 1031 |
| Prime factorization | 21521 | 11 × 19 × 103 |
| Divisors count | 2 | 8 |
| Divisors | 1, 21521 | 1, 11, 19, 103, 209, 1133, 1957, 21527 |
| Number of properties | 7 | 0 |
| Additive primes | 1119th | |
| Chen primes | 1184th | |
| Cousin primes (2nd member) | 368th | |
| Primes | 2415th | |
| Prime triplets (2nd member) | 183rd | |
| Pythagorean primes | 1197th | |
| Twin primes (1st member) | 365th | |
| Roman numberals | ||
| Base 2 | 1010100000100012 | 1010100000101112 |
| Base 3 | 10021120023 | 10021120223 |
| Base 4 | 111001014 | 111001134 |
| Base 5 | 11420415 | 11421025 |
| Base 6 | 2433456 | 2433556 |
| Base 7 | 1165137 | 1165227 |
| Base 8 | 520218 | 520278 |
| Base 9 | 324629 | 324689 |
| Base 10 | 2152110 | 2152710 |
| Base 11 | 1519511 | 151a011 |
| Base 12 | 1055512 | 1055b12 |
| Base 13 | 9a4613 | 9a4c13 |
| Base 14 | 7bb314 | 7bb914 |
| Base 15 | 659b15 | 65a215 |
| Base 16 | 541116 | 541716 |