Compare 3981 vs 3989
| Property | 3981 | 3989 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 13271 | 39891 |
| Prime factorization | 3 × 1327 | 3989 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 1327, 3981 | 1, 3989 |
| Number of properties | 1 | 8 |
| Additive primes | 281st | |
| Chen primes | 320th | |
| Good primes | 94th | |
| Harmonic primes | 198th | |
| Isolated primes | 345th | |
| Long primes | 218th | |
| Primes | 550th | |
| Pythagorean primes | 269th | |
| Semiprimes | 1098th | |
| Roman numberals | MMMCMLXXXI | MMMCMLXXXIX |
| Base 2 | 1111100011012 | 1111100101012 |
| Base 3 | 121101103 | 121102023 |
| Base 4 | 3320314 | 3321114 |
| Base 5 | 1114115 | 1114245 |
| Base 6 | 302336 | 302456 |
| Base 7 | 144157 | 144267 |
| Base 8 | 76158 | 76258 |
| Base 9 | 54139 | 54229 |
| Base 10 | 398110 | 398910 |
| Base 11 | 2a9a11 | 2aa711 |
| Base 12 | 237912 | 238512 |
| Base 13 | 1a7313 | 1a7b13 |
| Base 14 | 164514 | 164d14 |
| Base 15 | 12a615 | 12ae15 |
| Base 16 | f8d16 | f9516 |