Compare 809 vs 839
| Property | 809 | 839 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8091 | 8391 |
| Prime factorization | 809 | 839 |
| Divisors count | 2 | 2 |
| Divisors | 1, 809 | 1, 839 |
| Number of properties | 7 | 4 |
| Additive primes | 74th | |
| Chen primes | 95th | 100th |
| Good primes | 39th | |
| Isolated primes | 81st | |
| Primes | 140th | 146th |
| Pythagorean primes | 68th | |
| Safe primes | 22nd | |
| Sophie germain primes | 35th | |
| Twin primes (1st member) | 31st | |
| Roman numberals | DCCCIX | DCCCXXXIX |
| Base 2 | 11001010012 | 11010001112 |
| Base 3 | 10022223 | 10110023 |
| Base 4 | 302214 | 310134 |
| Base 5 | 112145 | 113245 |
| Base 6 | 34256 | 35156 |
| Base 7 | 22347 | 23067 |
| Base 8 | 14518 | 15078 |
| Base 9 | 10889 | 11329 |
| Base 10 | 80910 | 83910 |
| Base 11 | 67611 | 6a311 |
| Base 12 | 57512 | 59b12 |
| Base 13 | 4a313 | 4c713 |
| Base 14 | 41b14 | 43d14 |
| Base 15 | 38e15 | 3ae15 |
| Base 16 | 32916 | 34716 |