Compare 20939 vs 20981
| Property | 20939 | 20981 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209391 | 209811 |
| Prime factorization | 20939 | 20981 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20939 | 1, 20981 |
| Number of properties | 7 | 5 |
| Additive primes | 1093rd | |
| Chen primes | 1159th | 1161st |
| Good primes | 265th | |
| Isolated primes | 1644th | |
| Long primes | 895th | |
| Primes | 2355th | 2359th |
| Pythagorean primes | 1172nd | |
| Sophie germain primes | 340th | |
| Twin primes (1st member) | 357th | |
| Ulam primes | 176th | |
| Roman numberals | ||
| Base 2 | 1010001110010112 | 1010001111101012 |
| Base 3 | 10012011123 | 10012100023 |
| Base 4 | 110130234 | 110133114 |
| Base 5 | 11322245 | 11324115 |
| Base 6 | 2405356 | 2410456 |
| Base 7 | 1150227 | 1151127 |
| Base 8 | 507138 | 507658 |
| Base 9 | 316459 | 317029 |
| Base 10 | 2093910 | 2098110 |
| Base 11 | 1480611 | 1484411 |
| Base 12 | 1014b12 | 1018512 |
| Base 13 | 96b913 | 971c13 |
| Base 14 | 78b914 | 790914 |
| Base 15 | 630e15 | 633b15 |
| Base 16 | 51cb16 | 51f516 |