Compare 389 vs 449
| Property | 389 | 449 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3891 | 4491 |
| Prime factorization | 389 | 449 |
| Divisors count | 2 | 2 |
| Divisors | 1, 389 | 1, 449 |
| Number of properties | 7 | 9 |
| Additive primes | 50th | |
| Chen primes | 55th | 61st |
| Emirps | 20th | |
| Harmonic primes | 33rd | |
| Isolated primes | 36th | 42nd |
| Long primes | 29th | |
| Primes | 77th | 87th |
| Proth primes | 12th | |
| Pythagorean primes | 36th | 42nd |
| Sexy primes (2nd member) | 42nd | 44th |
| Solinas primes | 35th | |
| Roman numberals | CCCLXXXIX | CDXLIX |
| Base 2 | 1100001012 | 1110000012 |
| Base 3 | 1121023 | 1211223 |
| Base 4 | 120114 | 130014 |
| Base 5 | 30245 | 32445 |
| Base 6 | 14456 | 20256 |
| Base 7 | 10647 | 12117 |
| Base 8 | 6058 | 7018 |
| Base 9 | 4729 | 5489 |
| Base 10 | 38910 | 44910 |
| Base 11 | 32411 | 37911 |
| Base 12 | 28512 | 31512 |
| Base 13 | 23c13 | 28713 |
| Base 14 | 1db14 | 24114 |
| Base 15 | 1ae15 | 1ee15 |
| Base 16 | 18516 | 1c116 |