Compare 490991 vs 491261
| Property | 490991 | 491261 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4909911 | 4912611 |
| Prime factorization | 490991 | 491261 |
| Divisors count | 2 | 2 |
| Divisors | 1, 490991 | 1, 491261 |
| Number of properties | 4 | 5 |
| Additive primes | 16051st | |
| Chen primes | 16237th | 16245th |
| Happy primes | 5985th | |
| Isolated primes | 31862nd | |
| Primes | 40843rd | 40861st |
| Sophie germain primes | 4262nd | |
| Twin primes (1st member) | 4498th | |
| Roman numberals | ||
| Base 2 | 11101111101111011112 | 11101111110111111012 |
| Base 3 | 2202211112123 | 2202212122123 |
| Base 4 | 13133132334 | 13133233314 |
| Base 5 | 1112024315 | 1112100215 |
| Base 6 | 143050356 | 143102056 |
| Base 7 | 41133147 | 41141517 |
| Base 8 | 16767578 | 16773758 |
| Base 9 | 8274559 | 8277859 |
| Base 10 | 49099110 | 49126110 |
| Base 11 | 30598611 | 30610111 |
| Base 12 | 1b817b12 | 1b836512 |
| Base 13 | 14263713 | 1427b413 |
| Base 14 | cad0b14 | cb06114 |
| Base 15 | 9a72b15 | 9a85b15 |
| Base 16 | 77def16 | 77efd16 |