Compare 21814 vs 21821
| Property | 21814 | 21821 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 131 × 8391 | 218211 |
| Prime factorization | 2 × 13 × 839 | 21821 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 13, 26, 839, 1678, 10907, 21814 | 1, 21821 |
| Number of properties | 0 | 6 |
| Chen primes | 1201st | |
| Cousin primes (2nd member) | 372nd | |
| Isolated primes | 1707th | |
| Long primes | 926th | |
| Primes | 2448th | |
| Pythagorean primes | 1215th | |
| Roman numberals | ||
| Base 2 | 1010101001101102 | 1010101001111012 |
| Base 3 | 10022202213 | 10022210123 |
| Base 4 | 111103124 | 111103314 |
| Base 5 | 11442245 | 11442415 |
| Base 6 | 2445546 | 2450056 |
| Base 7 | 1204127 | 1204227 |
| Base 8 | 524668 | 524758 |
| Base 9 | 328279 | 328359 |
| Base 10 | 2181410 | 2182110 |
| Base 11 | 1543111 | 1543811 |
| Base 12 | 1075a12 | 1076512 |
| Base 13 | 9c1013 | 9c1713 |
| Base 14 | 7d4214 | 7d4914 |
| Base 15 | 66e415 | 66eb15 |
| Base 16 | 553616 | 553d16 |