Compare 21546 vs 21557
| Property | 21546 | 21557 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 21 × 34 × 71 × 191 | 215571 |
| Prime factorization | 2 × 3 × 3 × 3 × 3 × 7 × 19 | 21557 |
| Divisors count | 40 | 2 |
| Divisors | 1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 81, 114, 126, 133, 162, 171, 189, 266, 342, 378, 399, 513, 567, 798, 1026, 1134, 1197, 1539, 2394, 3078, 3591, 7182, 10773, 21546 | 1, 21557 |
| Number of properties | 0 | 8 |
| Chen primes | 1186th | |
| Good primes | 273rd | |
| Primes | 2418th | |
| Prime triplets (1st member) | 184th | |
| Pythagorean primes | 1199th | |
| Sexy primes (1st member) | 736th | |
| Sexy prime triplets (1st member) | 201st | |
| Twin primes (1st member) | 366th | |
| Roman numberals | ||
| Base 2 | 1010100001010102 | 1010100001101012 |
| Base 3 | 10021200003 | 10021201023 |
| Base 4 | 111002224 | 111003114 |
| Base 5 | 11421415 | 11422125 |
| Base 6 | 2434306 | 2434456 |
| Base 7 | 1165507 | 1165647 |
| Base 8 | 520528 | 520658 |
| Base 9 | 325009 | 325129 |
| Base 10 | 2154610 | 2155710 |
| Base 11 | 1520811 | 1521811 |
| Base 12 | 1057612 | 1058512 |
| Base 13 | 9a6513 | 9a7313 |
| Base 14 | 7bd014 | 7bdb14 |
| Base 15 | 65b615 | 65c215 |
| Base 16 | 542a16 | 543516 |