Compare 17981 vs 18143
| Property | 17981 | 18143 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 179811 | 181431 |
| Prime factorization | 17981 | 18143 |
| Divisors count | 2 | 2 |
| Divisors | 1, 17981 | 1, 18143 |
| Number of properties | 7 | 6 |
| Additive primes | 977th | |
| Cousin primes (2nd member) | 322nd | |
| Happy primes | 356th | |
| Isolated primes | 1435th | 1441st |
| Long primes | 794th | 798th |
| Primes | 2062nd | 2080th |
| Pythagorean primes | 1016th | |
| Sexy primes (1st member) | 637th | 642nd |
| Sophie germain primes | 299th | |
| Roman numberals | ||
| Base 2 | 1000110001111012 | 1000110110111112 |
| Base 3 | 2201222223 | 2202122223 |
| Base 4 | 101203314 | 101231334 |
| Base 5 | 10334115 | 10400335 |
| Base 6 | 2151256 | 2155556 |
| Base 7 | 1032657 | 1036167 |
| Base 8 | 430758 | 433378 |
| Base 9 | 265889 | 267889 |
| Base 10 | 1798110 | 1814310 |
| Base 11 | 1256711 | 126a411 |
| Base 12 | a4a512 | a5bb12 |
| Base 13 | 825213 | 834813 |
| Base 14 | 67a514 | 687d14 |
| Base 15 | 54db15 | 559815 |
| Base 16 | 463d16 | 46df16 |