Compare 3989 vs 3999
| Property | 3989 | 3999 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 39891 | 31 × 311 × 431 |
| Prime factorization | 3989 | 3 × 31 × 43 |
| Divisors count | 2 | 8 |
| Divisors | 1, 3989 | 1, 3, 31, 43, 93, 129, 1333, 3999 |
| Number of properties | 8 | 0 |
| Additive primes | 281st | |
| Chen primes | 320th | |
| Good primes | 94th | |
| Harmonic primes | 198th | |
| Isolated primes | 345th | |
| Long primes | 218th | |
| Primes | 550th | |
| Pythagorean primes | 269th | |
| Roman numberals | MMMCMLXXXIX | MMMCMXCIX |
| Base 2 | 1111100101012 | 1111100111112 |
| Base 3 | 121102023 | 121110103 |
| Base 4 | 3321114 | 3321334 |
| Base 5 | 1114245 | 1114445 |
| Base 6 | 302456 | 303036 |
| Base 7 | 144267 | 144427 |
| Base 8 | 76258 | 76378 |
| Base 9 | 54229 | 54339 |
| Base 10 | 398910 | 399910 |
| Base 11 | 2aa711 | 300611 |
| Base 12 | 238512 | 239312 |
| Base 13 | 1a7b13 | 1a8813 |
| Base 14 | 164d14 | 165914 |
| Base 15 | 12ae15 | 12b915 |
| Base 16 | f9516 | f9f16 |