Compare 449 vs 991
| Property | 449 | 991 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4491 | 9911 |
| Prime factorization | 449 | 991 |
| Divisors count | 2 | 2 |
| Divisors | 1, 449 | 1, 991 |
| Number of properties | 9 | 10 |
| Additive primes | 50th | 89th |
| Chen primes | 61st | 115th |
| Emirps | 36th | |
| Harmonic primes | 33rd | |
| Isolated primes | 42nd | 98th |
| Lucky primes | 42nd | |
| Primes | 87th | 167th |
| Proth primes | 12th | |
| Pythagorean primes | 42nd | |
| Sexy primes (1st member) | 74th | |
| Sexy primes (2nd member) | 44th | |
| Solinas primes | 35th | 43rd |
| Super primes | 39th | |
| Ulam primes | 18th | |
| Roman numberals | CDXLIX | CMXCI |
| Base 2 | 1110000012 | 11110111112 |
| Base 3 | 1211223 | 11002013 |
| Base 4 | 130014 | 331334 |
| Base 5 | 32445 | 124315 |
| Base 6 | 20256 | 43316 |
| Base 7 | 12117 | 26147 |
| Base 8 | 7018 | 17378 |
| Base 9 | 5489 | 13219 |
| Base 10 | 44910 | 99110 |
| Base 11 | 37911 | 82111 |
| Base 12 | 31512 | 6a712 |
| Base 13 | 28713 | 5b313 |
| Base 14 | 24114 | 50b14 |
| Base 15 | 1ee15 | 46115 |
| Base 16 | 1c116 | 3df16 |