Compare 211231 vs 212881
| Property | 211231 | 212881 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2112311 | 2128811 |
| Prime factorization | 211231 | 212881 |
| Divisors count | 2 | 2 |
| Divisors | 1, 211231 | 1, 212881 |
| Number of properties | 3 | 5 |
| Harmonic primes | 7133rd | |
| Isolated primes | 14488th | |
| Primes | 18913th | 19037th |
| Pythagorean primes | 9504th | |
| Super primes | 2152nd | 2163rd |
| Twin primes (2nd member) | 2265th | |
| Roman numberals | ||
| Base 2 | 1100111001000111112 | 1100111111100100012 |
| Base 3 | 1012012021013 | 1012110001113 |
| Base 4 | 3032101334 | 3033321014 |
| Base 5 | 232244115 | 233030115 |
| Base 6 | 43055316 | 43213216 |
| Base 7 | 15365567 | 15444347 |
| Base 8 | 6344378 | 6376218 |
| Base 9 | 3516719 | 3540149 |
| Base 10 | 21123110 | 21288110 |
| Base 11 | 13477911 | 135a3911 |
| Base 12 | a22a712 | a324112 |
| Base 13 | 751b713 | 75b8613 |
| Base 14 | 56d9d14 | 5781b14 |
| Base 15 | 428c115 | 4312115 |
| Base 16 | 3391f16 | 33f9116 |