Compare 19891 vs 19913
| Property | 19891 | 19913 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198911 | 199131 |
| Prime factorization | 19891 | 19913 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19891 | 1, 19913 |
| Number of properties | 4 | 10 |
| Additive primes | 1045th | |
| Emirps | 626th | |
| Good primes | 256th | |
| Harmonic primes | 815th | |
| Isolated primes | 1572nd | |
| Long primes | 861st | |
| Palindromic primes | 45th | |
| Primes | 2250th | 2251st |
| Pythagorean primes | 1119th | |
| Sexy primes (1st member) | 691st | |
| Sophie germain primes | 324th | |
| Super primes | 335th | |
| Twin primes (2nd member) | 340th | |
| Roman numberals | ||
| Base 2 | 1001101101100112 | 1001101110010012 |
| Base 3 | 10000212013 | 10000221123 |
| Base 4 | 103123034 | 103130214 |
| Base 5 | 11140315 | 11141235 |
| Base 6 | 2320316 | 2321056 |
| Base 7 | 1116647 | 1120257 |
| Base 8 | 466638 | 467118 |
| Base 9 | 302519 | 302759 |
| Base 10 | 1989110 | 1991310 |
| Base 11 | 13a4311 | 13a6311 |
| Base 12 | b61712 | b63512 |
| Base 13 | 909113 | 90aa13 |
| Base 14 | 736b14 | 738514 |
| Base 15 | 5d6115 | 5d7815 |
| Base 16 | 4db316 | 4dc916 |