Compare 42139 vs 42151
| Property | 42139 | 42151 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 421391 | 611 × 6911 |
| Prime factorization | 42139 | 61 × 691 |
| Divisors count | 2 | 4 |
| Divisors | 1, 42139 | 1, 61, 691, 42151 |
| Number of properties | 4 | 1 |
| Additive primes | 1964th | |
| Isolated primes | 3180th | |
| Long primes | 1658th | |
| Primes | 4405th | |
| Semiprimes | 10284th | |
| Roman numberals | ||
| Base 2 | 10100100100110112 | 10100100101001112 |
| Base 3 | 20102102013 | 20102110113 |
| Base 4 | 221021234 | 221022134 |
| Base 5 | 23220245 | 23221015 |
| Base 6 | 5230316 | 5230516 |
| Base 7 | 2335667 | 2336147 |
| Base 8 | 1222338 | 1222478 |
| Base 9 | 637219 | 637349 |
| Base 10 | 4213910 | 4215110 |
| Base 11 | 2972911 | 2973a11 |
| Base 12 | 2047712 | 2048712 |
| Base 13 | 1624613 | 1625513 |
| Base 14 | 114dd14 | 1150b14 |
| Base 15 | c74415 | c75115 |
| Base 16 | a49b16 | a4a716 |