Compare 19919 vs 20021
| Property | 19919 | 20021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199191 | 200211 |
| Prime factorization | 19919 | 20021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19919 | 1, 20021 |
| Number of properties | 7 | 6 |
| Additive primes | 1046th | 1051st |
| Chen primes | 1107th | 1113th |
| Harmonic primes | 816th | 822nd |
| Isolated primes | 1573rd | |
| Primes | 2252nd | 2264th |
| Pythagorean primes | 1126th | |
| Sexy primes (2nd member) | 691st | |
| Sophie germain primes | 325th | |
| Twin primes (1st member) | 343rd | |
| Roman numberals | ||
| Base 2 | 1001101110011112 | 1001110001101012 |
| Base 3 | 10000222023 | 10001101123 |
| Base 4 | 103130334 | 103203114 |
| Base 5 | 11141345 | 11200415 |
| Base 6 | 2321156 | 2324056 |
| Base 7 | 1120347 | 1122417 |
| Base 8 | 467178 | 470658 |
| Base 9 | 302829 | 304159 |
| Base 10 | 1991910 | 2002110 |
| Base 11 | 13a6911 | 1405111 |
| Base 12 | b63b12 | b70512 |
| Base 13 | 90b313 | 916113 |
| Base 14 | 738b14 | 742114 |
| Base 15 | 5d7e15 | 5deb15 |
| Base 16 | 4dcf16 | 4e3516 |