Compare 447 vs 449
| Property | 447 | 449 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 1491 | 4491 |
| Prime factorization | 3 × 149 | 449 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 149, 447 | 1, 449 |
| Number of properties | 1 | 9 |
| Additive primes | 50th | |
| Chen primes | 61st | |
| Harmonic primes | 33rd | |
| Isolated primes | 42nd | |
| Primes | 87th | |
| Proth primes | 12th | |
| Pythagorean primes | 42nd | |
| Semiprimes | 138th | |
| Sexy primes (2nd member) | 44th | |
| Solinas primes | 35th | |
| Roman numberals | CDXLVII | CDXLIX |
| Base 2 | 1101111112 | 1110000012 |
| Base 3 | 1211203 | 1211223 |
| Base 4 | 123334 | 130014 |
| Base 5 | 32425 | 32445 |
| Base 6 | 20236 | 20256 |
| Base 7 | 12067 | 12117 |
| Base 8 | 6778 | 7018 |
| Base 9 | 5469 | 5489 |
| Base 10 | 44710 | 44910 |
| Base 11 | 37711 | 37911 |
| Base 12 | 31312 | 31512 |
| Base 13 | 28513 | 28713 |
| Base 14 | 23d14 | 24114 |
| Base 15 | 1ec15 | 1ee15 |
| Base 16 | 1bf16 | 1c116 |