Compare 809 vs 809
| Property | 809 | 809 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8091 | 8091 |
| Prime factorization | 809 | 809 |
| Divisors count | 2 | 2 |
| Divisors | 1, 809 | 1, 809 |
| Number of properties | 7 | 7 |
| Additive primes | 74th | 74th |
| Chen primes | 95th | 95th |
| Good primes | 39th | 39th |
| Primes | 140th | 140th |
| Pythagorean primes | 68th | 68th |
| Sophie germain primes | 35th | 35th |
| Twin primes (1st member) | 31st | 31st |
| Roman numberals | DCCCIX | DCCCIX |
| Base 2 | 11001010012 | 11001010012 |
| Base 3 | 10022223 | 10022223 |
| Base 4 | 302214 | 302214 |
| Base 5 | 112145 | 112145 |
| Base 6 | 34256 | 34256 |
| Base 7 | 22347 | 22347 |
| Base 8 | 14518 | 14518 |
| Base 9 | 10889 | 10889 |
| Base 10 | 80910 | 80910 |
| Base 11 | 67611 | 67611 |
| Base 12 | 57512 | 57512 |
| Base 13 | 4a313 | 4a313 |
| Base 14 | 41b14 | 41b14 |
| Base 15 | 38e15 | 38e15 |
| Base 16 | 32916 | 32916 |