Compare 438 vs 439
| Property | 438 | 439 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 31 × 731 | 4391 |
| Prime factorization | 2 × 3 × 73 | 439 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 3, 6, 73, 146, 219, 438 | 1, 439 |
| Number of properties | 0 | 4 |
| Cousin primes (1st member) | 23rd | |
| Isolated primes | 40th | |
| Primes | 85th | |
| Sexy primes (2nd member) | 43rd | |
| Roman numberals | CDXXXVIII | CDXXXIX |
| Base 2 | 1101101102 | 1101101112 |
| Base 3 | 1210203 | 1210213 |
| Base 4 | 123124 | 123134 |
| Base 5 | 32235 | 32245 |
| Base 6 | 20106 | 20116 |
| Base 7 | 11647 | 11657 |
| Base 8 | 6668 | 6678 |
| Base 9 | 5369 | 5379 |
| Base 10 | 43810 | 43910 |
| Base 11 | 36911 | 36a11 |
| Base 12 | 30612 | 30712 |
| Base 13 | 27913 | 27a13 |
| Base 14 | 23414 | 23514 |
| Base 15 | 1e315 | 1e415 |
| Base 16 | 1b616 | 1b716 |