Compare 42985 vs 42989
| Property | 42985 | 42989 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 85971 | 429891 |
| Prime factorization | 5 × 8597 | 42989 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 8597, 42985 | 1, 42989 |
| Number of properties | 1 | 7 |
| Chen primes | 2105th | |
| Harmonic primes | 1672nd | |
| Isolated primes | 3249th | |
| Long primes | 1691st | |
| Primes | 4494th | |
| Pythagorean primes | 2230th | |
| Semiprimes | 10459th | |
| Ulam primes | 340th | |
| Roman numberals | ||
| Base 2 | 10100111111010012 | 10100111111011012 |
| Base 3 | 20112220013 | 20112220123 |
| Base 4 | 221332214 | 221332314 |
| Base 5 | 23334205 | 23334245 |
| Base 6 | 5310016 | 5310056 |
| Base 7 | 2362157 | 2362227 |
| Base 8 | 1237518 | 1237558 |
| Base 9 | 648619 | 648659 |
| Base 10 | 4298510 | 4298910 |
| Base 11 | 2a32811 | 2a33111 |
| Base 12 | 20a6112 | 20a6512 |
| Base 13 | 1674713 | 1674b13 |
| Base 14 | 1194514 | 1194914 |
| Base 15 | cb0a15 | cb0e15 |
| Base 16 | a7e916 | a7ed16 |