Compare 212161 vs 212561
| Property | 212161 | 212561 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2121611 | 2125611 |
| Prime factorization | 212161 | 212561 |
| Divisors count | 2 | 2 |
| Divisors | 1, 212161 | 1, 212561 |
| Number of properties | 5 | 7 |
| Additive primes | 7665th | 7679th |
| Cousin primes (2nd member) | 2255th | |
| Harmonic primes | 7122nd | |
| Isolated primes | 14444th | 14469th |
| Primes | 18987th | 19014th |
| Pythagorean primes | 9480th | 9492nd |
| Sexy primes (1st member) | 4503rd | |
| Sophie germain primes | 2162nd | |
| Roman numberals | ||
| Base 2 | 1100111100110000012 | 1100111110010100012 |
| Base 3 | 1012100002113 | 1012101201223 |
| Base 4 | 3033030014 | 3033211014 |
| Base 5 | 232421215 | 233002215 |
| Base 6 | 43141216 | 43200256 |
| Base 7 | 15423557 | 15434667 |
| Base 8 | 6363018 | 6371218 |
| Base 9 | 3530249 | 3535189 |
| Base 10 | 21216110 | 21256110 |
| Base 11 | 13544411 | 13577811 |
| Base 12 | a294112 | a301512 |
| Base 13 | 7575113 | 7599b13 |
| Base 14 | 5746514 | 5766d14 |
| Base 15 | 42ce115 | 42eab15 |
| Base 16 | 33cc116 | 33e5116 |