Compare 20731 vs 20809
| Property | 20731 | 20809 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 207311 | 208091 |
| Prime factorization | 20731 | 20809 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20731 | 1, 20809 |
| Number of properties | 6 | 5 |
| Additive primes | 1085th | 1091st |
| Chen primes | 1148th | |
| Harmonic primes | 853rd | 859th |
| Isolated primes | 1631st | |
| Lucky primes | 379th | |
| Primes | 2334th | 2344th |
| Pythagorean primes | 1165th | |
| Twin primes (2nd member) | 355th | |
| Roman numberals | ||
| Base 2 | 1010000111110112 | 1010001010010012 |
| Base 3 | 10011022113 | 10011122013 |
| Base 4 | 110033234 | 110110214 |
| Base 5 | 11304115 | 11312145 |
| Base 6 | 2355516 | 2402016 |
| Base 7 | 1143047 | 1144457 |
| Base 8 | 503738 | 505118 |
| Base 9 | 313849 | 314819 |
| Base 10 | 2073110 | 2080910 |
| Base 11 | 1463711 | 146a811 |
| Base 12 | bbb712 | 1006112 |
| Base 13 | 958913 | 961913 |
| Base 14 | 77ab14 | 782514 |
| Base 15 | 622115 | 627415 |
| Base 16 | 50fb16 | 514916 |