Compare 809 vs 919
| Property | 809 | 919 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8091 | 9191 |
| Prime factorization | 809 | 919 |
| Divisors count | 2 | 2 |
| Divisors | 1, 809 | 1, 919 |
| Number of properties | 7 | 7 |
| Additive primes | 74th | 84th |
| Chen primes | 95th | 107th |
| Cuban primes 1 | 11th | |
| Good primes | 39th | |
| Isolated primes | 88th | |
| Palindromic primes | 19th | |
| Primes | 140th | 157th |
| Pythagorean primes | 68th | |
| Sophie germain primes | 35th | |
| Super primes | 37th | |
| Twin primes (1st member) | 31st | |
| Roman numberals | DCCCIX | CMXIX |
| Base 2 | 11001010012 | 11100101112 |
| Base 3 | 10022223 | 10210013 |
| Base 4 | 302214 | 321134 |
| Base 5 | 112145 | 121345 |
| Base 6 | 34256 | 41316 |
| Base 7 | 22347 | 24527 |
| Base 8 | 14518 | 16278 |
| Base 9 | 10889 | 12319 |
| Base 10 | 80910 | 91910 |
| Base 11 | 67611 | 76611 |
| Base 12 | 57512 | 64712 |
| Base 13 | 4a313 | 55913 |
| Base 14 | 41b14 | 49914 |
| Base 15 | 38e15 | 41415 |
| Base 16 | 32916 | 39716 |