Compare 445 vs 447
| Property | 445 | 447 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 891 | 31 × 1491 |
| Prime factorization | 5 × 89 | 3 × 149 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 89, 445 | 1, 3, 149, 447 |
| Number of properties | 1 | 1 |
| Semiprimes | 136th | 138th |
| Roman numberals | CDXLV | CDXLVII |
| Base 2 | 1101111012 | 1101111112 |
| Base 3 | 1211113 | 1211203 |
| Base 4 | 123314 | 123334 |
| Base 5 | 32405 | 32425 |
| Base 6 | 20216 | 20236 |
| Base 7 | 12047 | 12067 |
| Base 8 | 6758 | 6778 |
| Base 9 | 5449 | 5469 |
| Base 10 | 44510 | 44710 |
| Base 11 | 37511 | 37711 |
| Base 12 | 31112 | 31312 |
| Base 13 | 28313 | 28513 |
| Base 14 | 23b14 | 23d14 |
| Base 15 | 1ea15 | 1ec15 |
| Base 16 | 1bd16 | 1bf16 |