Compare 389 vs 397
| Property | 389 | 397 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3891 | 3971 |
| Prime factorization | 389 | 397 |
| Divisors count | 2 | 2 |
| Divisors | 1, 389 | 1, 397 |
| Number of properties | 7 | 8 |
| Additive primes | 45th | |
| Chen primes | 55th | |
| Cousin primes (1st member) | 22nd | |
| Cuban primes 1 | 8th | |
| Emirps | 20th | |
| Happy primes | 21st | |
| Isolated primes | 36th | 37th |
| Left-truncatable primes | 31st | |
| Long primes | 29th | |
| Primes | 77th | 78th |
| Pythagorean primes | 36th | 37th |
| Sexy primes (2nd member) | 42nd | |
| Roman numberals | CCCLXXXIX | CCCXCVII |
| Base 2 | 1100001012 | 1100011012 |
| Base 3 | 1121023 | 1122013 |
| Base 4 | 120114 | 120314 |
| Base 5 | 30245 | 30425 |
| Base 6 | 14456 | 15016 |
| Base 7 | 10647 | 11057 |
| Base 8 | 6058 | 6158 |
| Base 9 | 4729 | 4819 |
| Base 10 | 38910 | 39710 |
| Base 11 | 32411 | 33111 |
| Base 12 | 28512 | 29112 |
| Base 13 | 23c13 | 24713 |
| Base 14 | 1db14 | 20514 |
| Base 15 | 1ae15 | 1b715 |
| Base 16 | 18516 | 18d16 |