Compare 19913 vs 21139
| Property | 19913 | 21139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199131 | 211391 |
| Prime factorization | 19913 | 21139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19913 | 1, 21139 |
| Number of properties | 10 | 5 |
| Additive primes | 1045th | |
| Cousin primes (1st member) | 360th | |
| Emirps | 626th | |
| Good primes | 256th | 266th |
| Isolated primes | 1572nd | 1656th |
| Long primes | 861st | |
| Lucky primes | 385th | |
| Primes | 2251st | 2375th |
| Pythagorean primes | 1119th | |
| Sexy primes (1st member) | 691st | |
| Sophie germain primes | 324th | |
| Super primes | 335th | |
| Roman numberals | ||
| Base 2 | 1001101110010012 | 1010010100100112 |
| Base 3 | 10000221123 | 10012222213 |
| Base 4 | 103130214 | 110221034 |
| Base 5 | 11141235 | 11340245 |
| Base 6 | 2321056 | 2415116 |
| Base 7 | 1120257 | 1154267 |
| Base 8 | 467118 | 512238 |
| Base 9 | 302759 | 318879 |
| Base 10 | 1991310 | 2113910 |
| Base 11 | 13a6311 | 1497811 |
| Base 12 | b63512 | 1029712 |
| Base 13 | 90aa13 | 981113 |
| Base 14 | 738514 | 79bd14 |
| Base 15 | 5d7815 | 63e415 |
| Base 16 | 4dc916 | 529316 |