Compare 811991 vs 812001
| Property | 811991 | 812001 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 8119911 | 31 × 2706671 |
| Prime factorization | 811991 | 3 × 270667 |
| Divisors count | 2 | 4 |
| Divisors | 1, 811991 | 1, 3, 270667, 812001 |
| Number of properties | 4 | 1 |
| Additive primes | 25079th | |
| Isolated primes | 51159th | |
| Primes | 64832nd | |
| Semiprimes | 172075th | |
| Sexy primes (1st member) | 13751st | |
| Roman numberals | ||
| Base 2 | 110001100011110101112 | 110001100011111000012 |
| Base 3 | 11120202112023 | 11120202120103 |
| Base 4 | 30120331134 | 30120332014 |
| Base 5 | 2014404315 | 2014410015 |
| Base 6 | 252231156 | 252231336 |
| Base 7 | 66212157 | 66212317 |
| Base 8 | 30617278 | 30617418 |
| Base 9 | 14667529 | 14667639 |
| Base 10 | 81199110 | 81200110 |
| Base 11 | 50507411 | 50508311 |
| Base 12 | 331a9b12 | 331aa912 |
| Base 13 | 22578b13 | 22579813 |
| Base 14 | 171cb514 | 171cc114 |
| Base 15 | 1108cb15 | 1108d615 |
| Base 16 | c63d716 | c63e116 |