Compare 809 vs 1409
| Property | 809 | 1409 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8091 | 14091 |
| Prime factorization | 809 | 1409 |
| Divisors count | 2 | 2 |
| Divisors | 1, 809 | 1, 1409 |
| Number of properties | 7 | 8 |
| Additive primes | 74th | |
| Chen primes | 95th | 146th |
| Emirps | 66th | |
| Good primes | 39th | |
| Isolated primes | 132nd | |
| Primes | 140th | 223rd |
| Proth primes | 20th | |
| Pythagorean primes | 68th | 110th |
| Sophie germain primes | 35th | 46th |
| Super primes | 48th | |
| Twin primes (1st member) | 31st | |
| Roman numberals | DCCCIX | MCDIX |
| Base 2 | 11001010012 | 101100000012 |
| Base 3 | 10022223 | 12210123 |
| Base 4 | 302214 | 1120014 |
| Base 5 | 112145 | 211145 |
| Base 6 | 34256 | 103056 |
| Base 7 | 22347 | 40527 |
| Base 8 | 14518 | 26018 |
| Base 9 | 10889 | 18359 |
| Base 10 | 80910 | 140910 |
| Base 11 | 67611 | 107111 |
| Base 12 | 57512 | 99512 |
| Base 13 | 4a313 | 84513 |
| Base 14 | 41b14 | 72914 |
| Base 15 | 38e15 | 63e15 |
| Base 16 | 32916 | 58116 |