Compare 389 vs 400
| Property | 389 | 400 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 6 |
| Prime factorization | 3891 | 24 × 52 |
| Prime factorization | 389 | 2 × 2 × 2 × 2 × 5 × 5 |
| Divisors count | 2 | 15 |
| Divisors | 1, 389 | 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400 |
| 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 | CD |
| Base 2 | 1100001012 | 1100100002 |
| Base 3 | 1121023 | 1122113 |
| Base 4 | 120114 | 121004 |
| Base 5 | 30245 | 31005 |
| Base 6 | 14456 | 15046 |
| Base 7 | 10647 | 11117 |
| Base 8 | 6058 | 6208 |
| Base 9 | 4729 | 4849 |
| Base 10 | 38910 | 40010 |
| Base 11 | 32411 | 33411 |
| Base 12 | 28512 | 29412 |
| Base 13 | 23c13 | 24a13 |
| Base 14 | 1db14 | 20814 |
| Base 15 | 1ae15 | 1ba15 |
| Base 16 | 18516 | 19016 |