Compare 209809 vs 210143
| Property | 209809 | 210143 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2098091 | 2101431 |
| Prime factorization | 209809 | 210143 |
| Divisors count | 2 | 2 |
| Divisors | 1, 209809 | 1, 210143 |
| Number of properties | 5 | 8 |
| Additive primes | 7593rd | |
| Cousin primes (1st member) | 2223rd | |
| Cousin primes (2nd member) | 2229th | |
| Happy primes | 2856th | 2862nd |
| Harmonic primes | 7049th | |
| Isolated primes | 14288th | 14316th |
| Long primes | 7043rd | |
| Primes | 18789th | 18821st |
| Pythagorean primes | 9383rd | |
| Safe primes | 1225th | |
| Roman numberals | ||
| Base 2 | 1100110011100100012 | 1100110100110111112 |
| Base 3 | 1011222102013 | 1012000210023 |
| Base 4 | 3030321014 | 3031031334 |
| Base 5 | 232032145 | 232110335 |
| Base 6 | 42552016 | 43005156 |
| Base 7 | 15324557 | 15334437 |
| Base 8 | 6316218 | 6323378 |
| Base 9 | 3487219 | 3502329 |
| Base 10 | 20980910 | 21014310 |
| Base 11 | 1336a611 | 13397a11 |
| Base 12 | a150112 | a173b12 |
| Base 13 | 7466213 | 7485b13 |
| Base 14 | 5666514 | 5682314 |
| Base 15 | 4227415 | 423e815 |
| Base 16 | 3339116 | 334df16 |