Compare 19813 vs 20021
| Property | 19813 | 20021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198131 | 200211 |
| Prime factorization | 19813 | 20021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19813 | 1, 20021 |
| Number of properties | 6 | 6 |
| Additive primes | 1051st | |
| Chen primes | 1113th | |
| Emirps | 624th | |
| Harmonic primes | 811th | 822nd |
| Isolated primes | 1567th | |
| Primes | 2242nd | 2264th |
| Pythagorean primes | 1114th | 1126th |
| Sexy primes (1st member) | 689th | |
| Twin primes (1st member) | 343rd | |
| Roman numberals | ||
| Base 2 | 1001101011001012 | 1001110001101012 |
| Base 3 | 10000112113 | 10001101123 |
| Base 4 | 103112114 | 103203114 |
| Base 5 | 11132235 | 11200415 |
| Base 6 | 2314216 | 2324056 |
| Base 7 | 1115237 | 1122417 |
| Base 8 | 465458 | 470658 |
| Base 9 | 301549 | 304159 |
| Base 10 | 1981310 | 2002110 |
| Base 11 | 1398211 | 1405111 |
| Base 12 | b57112 | b70512 |
| Base 13 | 903113 | 916113 |
| Base 14 | 731314 | 742114 |
| Base 15 | 5d0d15 | 5deb15 |
| Base 16 | 4d6516 | 4e3516 |