Compare 389 vs 509
| Property | 389 | 509 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3891 | 5091 |
| Prime factorization | 389 | 509 |
| Divisors count | 2 | 2 |
| Divisors | 1, 389 | 1, 509 |
| Number of properties | 7 | 9 |
| Chen primes | 55th | 69th |
| Emirps | 20th | |
| Isolated primes | 36th | 50th |
| Long primes | 29th | 37th |
| Primes | 77th | 97th |
| Pythagorean primes | 36th | 45th |
| Sexy primes (2nd member) | 42nd | 47th |
| Solinas primes | 38th | |
| Sophie germain primes | 26th | |
| Super primes | 25th | |
| Roman numberals | CCCLXXXIX | DIX |
| Base 2 | 1100001012 | 1111111012 |
| Base 3 | 1121023 | 2002123 |
| Base 4 | 120114 | 133314 |
| Base 5 | 30245 | 40145 |
| Base 6 | 14456 | 22056 |
| Base 7 | 10647 | 13257 |
| Base 8 | 6058 | 7758 |
| Base 9 | 4729 | 6259 |
| Base 10 | 38910 | 50910 |
| Base 11 | 32411 | 42311 |
| Base 12 | 28512 | 36512 |
| Base 13 | 23c13 | 30213 |
| Base 14 | 1db14 | 28514 |
| Base 15 | 1ae15 | 23e15 |
| Base 16 | 18516 | 1fd16 |