Compare 445 vs 449
| Property | 445 | 449 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 891 | 4491 |
| Prime factorization | 5 × 89 | 449 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 89, 445 | 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 | 136th | |
| Sexy primes (2nd member) | 44th | |
| Solinas primes | 35th | |
| Roman numberals | CDXLV | CDXLIX |
| Base 2 | 1101111012 | 1110000012 |
| Base 3 | 1211113 | 1211223 |
| Base 4 | 123314 | 130014 |
| Base 5 | 32405 | 32445 |
| Base 6 | 20216 | 20256 |
| Base 7 | 12047 | 12117 |
| Base 8 | 6758 | 7018 |
| Base 9 | 5449 | 5489 |
| Base 10 | 44510 | 44910 |
| Base 11 | 37511 | 37911 |
| Base 12 | 31112 | 31512 |
| Base 13 | 28313 | 28713 |
| Base 14 | 23b14 | 24114 |
| Base 15 | 1ea15 | 1ee15 |
| Base 16 | 1bd16 | 1c116 |