Compare 447 vs 481
| Property | 447 | 481 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 1491 | 131 × 371 |
| Prime factorization | 3 × 149 | 13 × 37 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 149, 447 | 1, 13, 37, 481 |
| Number of properties | 1 | 1 |
| Semiprimes | 138th | 148th |
| Roman numberals | CDXLVII | CDLXXXI |
| Base 2 | 1101111112 | 1111000012 |
| Base 3 | 1211203 | 1222113 |
| Base 4 | 123334 | 132014 |
| Base 5 | 32425 | 34115 |
| Base 6 | 20236 | 21216 |
| Base 7 | 12067 | 12557 |
| Base 8 | 6778 | 7418 |
| Base 9 | 5469 | 5849 |
| Base 10 | 44710 | 48110 |
| Base 11 | 37711 | 3a811 |
| Base 12 | 31312 | 34112 |
| Base 13 | 28513 | 2b013 |
| Base 14 | 23d14 | 26514 |
| Base 15 | 1ec15 | 22115 |
| Base 16 | 1bf16 | 1e116 |