Compare 19913 vs 20021
| Property | 19913 | 20021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199131 | 200211 |
| Prime factorization | 19913 | 20021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19913 | 1, 20021 |
| Number of properties | 10 | 6 |
| Additive primes | 1045th | 1051st |
| Chen primes | 1113th | |
| Emirps | 626th | |
| Good primes | 256th | |
| Harmonic primes | 822nd | |
| Isolated primes | 1572nd | |
| Long primes | 861st | |
| Primes | 2251st | 2264th |
| Pythagorean primes | 1119th | 1126th |
| Sexy primes (1st member) | 691st | |
| Sophie germain primes | 324th | |
| Super primes | 335th | |
| Twin primes (1st member) | 343rd | |
| Roman numberals | ||
| Base 2 | 1001101110010012 | 1001110001101012 |
| Base 3 | 10000221123 | 10001101123 |
| Base 4 | 103130214 | 103203114 |
| Base 5 | 11141235 | 11200415 |
| Base 6 | 2321056 | 2324056 |
| Base 7 | 1120257 | 1122417 |
| Base 8 | 467118 | 470658 |
| Base 9 | 302759 | 304159 |
| Base 10 | 1991310 | 2002110 |
| Base 11 | 13a6311 | 1405111 |
| Base 12 | b63512 | b70512 |
| Base 13 | 90aa13 | 916113 |
| Base 14 | 738514 | 742114 |
| Base 15 | 5d7815 | 5deb15 |
| Base 16 | 4dc916 | 4e3516 |