Compare 42139 vs 42145
| Property | 42139 | 42145 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 421391 | 51 × 84291 |
| Prime factorization | 42139 | 5 × 8429 |
| Divisors count | 2 | 4 |
| Divisors | 1, 42139 | 1, 5, 8429, 42145 |
| Number of properties | 4 | 1 |
| Additive primes | 1964th | |
| Isolated primes | 3180th | |
| Long primes | 1658th | |
| Primes | 4405th | |
| Semiprimes | 10282nd | |
| Roman numberals | ||
| Base 2 | 10100100100110112 | 10100100101000012 |
| Base 3 | 20102102013 | 20102102213 |
| Base 4 | 221021234 | 221022014 |
| Base 5 | 23220245 | 23220405 |
| Base 6 | 5230316 | 5230416 |
| Base 7 | 2335667 | 2336057 |
| Base 8 | 1222338 | 1222418 |
| Base 9 | 637219 | 637279 |
| Base 10 | 4213910 | 4214510 |
| Base 11 | 2972911 | 2973411 |
| Base 12 | 2047712 | 2048112 |
| Base 13 | 1624613 | 1624c13 |
| Base 14 | 114dd14 | 1150514 |
| Base 15 | c74415 | c74a15 |
| Base 16 | a49b16 | a4a116 |