Compare 639139 vs 639151
| Property | 639139 | 639151 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 2291 × 27911 | 6391511 |
| Prime factorization | 229 × 2791 | 639151 |
| Divisors count | 4 | 2 |
| Divisors | 1, 229, 2791, 639139 | 1, 639151 |
| Number of properties | 1 | 3 |
| Isolated primes | 40765th | |
| Primes | 52012th | |
| Semiprimes | 136960th | |
| Sexy primes (1st member) | 11271st | |
| Roman numberals | ||
| Base 2 | 100111000000101000112 | 100111000000101011112 |
| Base 3 | 10121102012113 | 10121102020213 |
| Base 4 | 21300022034 | 21300022334 |
| Base 5 | 1304230245 | 1304231015 |
| Base 6 | 214105516 | 214110116 |
| Base 7 | 53012447 | 53012627 |
| Base 8 | 23402438 | 23402578 |
| Base 9 | 11736549 | 11736679 |
| Base 10 | 63913910 | 63915110 |
| Base 11 | 3a721611 | 3a722711 |
| Base 12 | 269a5712 | 269a6712 |
| Base 13 | 194bb713 | 194bc613 |
| Base 14 | 128ccb14 | 128cd914 |
| Base 15 | c959415 | c95a115 |
| Base 16 | 9c0a316 | 9c0af16 |