Compare 3986 vs 3989
| Property | 3986 | 3989 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 19931 | 39891 |
| Prime factorization | 2 × 1993 | 3989 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 1993, 3986 | 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 | 1101st | |
| Roman numberals | MMMCMLXXXVI | MMMCMLXXXIX |
| Base 2 | 1111100100102 | 1111100101012 |
| Base 3 | 121101223 | 121102023 |
| Base 4 | 3321024 | 3321114 |
| Base 5 | 1114215 | 1114245 |
| Base 6 | 302426 | 302456 |
| Base 7 | 144237 | 144267 |
| Base 8 | 76228 | 76258 |
| Base 9 | 54189 | 54229 |
| Base 10 | 398610 | 398910 |
| Base 11 | 2aa411 | 2aa711 |
| Base 12 | 238212 | 238512 |
| Base 13 | 1a7813 | 1a7b13 |
| Base 14 | 164a14 | 164d14 |
| Base 15 | 12ab15 | 12ae15 |
| Base 16 | f9216 | f9516 |