Compare 217121 vs 218681
| Property | 217121 | 218681 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2171211 | 2186811 |
| Prime factorization | 217121 | 218681 |
| Divisors count | 2 | 2 |
| Divisors | 1, 217121 | 1, 218681 |
| Number of properties | 7 | 6 |
| Chen primes | 8077th | 8132nd |
| Cousin primes (2nd member) | 2287th | 2302nd |
| Isolated primes | 14772nd | 14867th |
| Primes | 19373rd | 19500th |
| Pythagorean primes | 9665th | 9729th |
| Sophie germain primes | 2198th | 2208th |
| Super primes | 2192nd | |
| Roman numberals | ||
| Base 2 | 1101010000001000012 | 1101010110001110012 |
| Base 3 | 1020002111123 | 1020022220223 |
| Base 4 | 3110002014 | 3111203214 |
| Base 5 | 234214415 | 234442115 |
| Base 6 | 43531056 | 44042256 |
| Base 7 | 15630027 | 16003617 |
| Base 8 | 6500418 | 6530718 |
| Base 9 | 3607459 | 3628689 |
| Base 10 | 21712110 | 21868110 |
| Base 11 | 13914311 | 13a33111 |
| Base 12 | a579512 | a667512 |
| Base 13 | 77a9813 | 786c813 |
| Base 14 | 591a914 | 599a114 |
| Base 15 | 444eb15 | 44bdb15 |
| Base 16 | 3502116 | 3563916 |