Compare 20809 vs 20887
| Property | 20809 | 20887 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 208091 | 208871 |
| Prime factorization | 20809 | 20887 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20809 | 1, 20887 |
| Number of properties | 5 | 3 |
| Additive primes | 1091st | |
| Harmonic primes | 859th | |
| Isolated primes | 1640th | |
| Lucky primes | 381st | |
| Primes | 2344th | 2349th |
| Pythagorean primes | 1165th | |
| Twin primes (2nd member) | 355th | |
| Roman numberals | ||
| Base 2 | 1010001010010012 | 1010001100101112 |
| Base 3 | 10011122013 | 10011221213 |
| Base 4 | 110110214 | 110121134 |
| Base 5 | 11312145 | 11320225 |
| Base 6 | 2402016 | 2404116 |
| Base 7 | 1144457 | 1146167 |
| Base 8 | 505118 | 506278 |
| Base 9 | 314819 | 315779 |
| Base 10 | 2080910 | 2088710 |
| Base 11 | 146a811 | 1476911 |
| Base 12 | 1006112 | 1010712 |
| Base 13 | 961913 | 967913 |
| Base 14 | 782514 | 787d14 |
| Base 15 | 627415 | 62c715 |
| Base 16 | 514916 | 519716 |