Compare 389 vs 399
| Property | 389 | 399 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 3891 | 31 × 71 × 191 |
| Prime factorization | 389 | 3 × 7 × 19 |
| Divisors count | 2 | 8 |
| Divisors | 1, 389 | 1, 3, 7, 19, 21, 57, 133, 399 |
| Number of properties | 7 | 0 |
| Chen primes | 55th | |
| Emirps | 20th | |
| Isolated primes | 36th | |
| Long primes | 29th | |
| Primes | 77th | |
| Pythagorean primes | 36th | |
| Sexy primes (2nd member) | 42nd | |
| Roman numberals | CCCLXXXIX | CCCXCIX |
| Base 2 | 1100001012 | 1100011112 |
| Base 3 | 1121023 | 1122103 |
| Base 4 | 120114 | 120334 |
| Base 5 | 30245 | 30445 |
| Base 6 | 14456 | 15036 |
| Base 7 | 10647 | 11107 |
| Base 8 | 6058 | 6178 |
| Base 9 | 4729 | 4839 |
| Base 10 | 38910 | 39910 |
| Base 11 | 32411 | 33311 |
| Base 12 | 28512 | 29312 |
| Base 13 | 23c13 | 24913 |
| Base 14 | 1db14 | 20714 |
| Base 15 | 1ae15 | 1b915 |
| Base 16 | 18516 | 18f16 |