Compare 438 vs 445
| Property | 438 | 445 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 31 × 731 | 51 × 891 |
| Prime factorization | 2 × 3 × 73 | 5 × 89 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 3, 6, 73, 146, 219, 438 | 1, 5, 89, 445 |
| Number of properties | 0 | 1 |
| Semiprimes | 136th | |
| Roman numberals | CDXXXVIII | CDXLV |
| Base 2 | 1101101102 | 1101111012 |
| Base 3 | 1210203 | 1211113 |
| Base 4 | 123124 | 123314 |
| Base 5 | 32235 | 32405 |
| Base 6 | 20106 | 20216 |
| Base 7 | 11647 | 12047 |
| Base 8 | 6668 | 6758 |
| Base 9 | 5369 | 5449 |
| Base 10 | 43810 | 44510 |
| Base 11 | 36911 | 37511 |
| Base 12 | 30612 | 31112 |
| Base 13 | 27913 | 28313 |
| Base 14 | 23414 | 23b14 |
| Base 15 | 1e315 | 1ea15 |
| Base 16 | 1b616 | 1bd16 |