Compare 19961 vs 20849
| Property | 19961 | 20849 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199611 | 208491 |
| Prime factorization | 19961 | 20849 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19961 | 1, 20849 |
| Number of properties | 5 | 8 |
| Additive primes | 1092nd | |
| Chen primes | 1110th | 1155th |
| Good primes | 257th | 262nd |
| Harmonic primes | 860th | |
| Isolated primes | 1636th | |
| Primes | 2256th | 2345th |
| Pythagorean primes | 1122nd | 1166th |
| Twin primes (1st member) | 341st | |
| Ulam primes | 175th | |
| Roman numberals | ||
| Base 2 | 1001101111110012 | 1010001011100012 |
| Base 3 | 10001010223 | 10011210123 |
| Base 4 | 103133214 | 110113014 |
| Base 5 | 11143215 | 11313445 |
| Base 6 | 2322256 | 2403056 |
| Base 7 | 1121247 | 1145337 |
| Base 8 | 467718 | 505618 |
| Base 9 | 303389 | 315359 |
| Base 10 | 1996110 | 2084910 |
| Base 11 | 13aa711 | 1473411 |
| Base 12 | b67512 | 1009512 |
| Base 13 | 911613 | 964a13 |
| Base 14 | 73bb14 | 785314 |
| Base 15 | 5dab15 | 629e15 |
| Base 16 | 4df916 | 517116 |