Compare 208991 vs 209717
| Property | 208991 | 209717 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2089911 | 2097171 |
| Prime factorization | 208991 | 209717 |
| Divisors count | 2 | 2 |
| Divisors | 1, 208991 | 1, 209717 |
| Number of properties | 7 | 5 |
| Additive primes | 7551st | |
| Chen primes | 7818th | 7845th |
| Harmonic primes | 7034th | |
| Primes | 18717th | 18782nd |
| Prime triplets (1st member) | 871st | |
| Pythagorean primes | 9380th | |
| Sexy primes (1st member) | 4448th | |
| Sophie germain primes | 2127th | |
| Twin primes (1st member) | 2244th | 2251st |
| Roman numberals | ||
| Base 2 | 1100110000010111112 | 1100110011001101012 |
| Base 3 | 1011212001023 | 1011222000223 |
| Base 4 | 3030011334 | 3030303114 |
| Base 5 | 231414315 | 232023325 |
| Base 6 | 42513156 | 42545256 |
| Base 7 | 15302067 | 15322647 |
| Base 8 | 6301378 | 6314658 |
| Base 9 | 3476129 | 3486089 |
| Base 10 | 20899110 | 20971710 |
| Base 11 | 13302211 | 13362211 |
| Base 12 | a0b3b12 | a144512 |
| Base 13 | 7418313 | 745c113 |
| Base 14 | 5623d14 | 565db14 |
| Base 15 | 41dcb15 | 4221215 |
| Base 16 | 3305f16 | 3333516 |