Compare 21247 vs 21401
| Property | 21247 | 21401 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 212471 | 214011 |
| Prime factorization | 21247 | 21401 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21247 | 1, 21401 |
| Number of properties | 3 | 6 |
| Chen primes | 1179th | |
| Cousin primes (2nd member) | 365th | |
| Isolated primes | 1667th | 1678th |
| Long primes | 907th | |
| Primes | 2388th | 2403rd |
| Pythagorean primes | 1192nd | |
| Sexy primes (1st member) | 730th | |
| Roman numberals | ||
| Base 2 | 1010010111111112 | 1010011100110012 |
| Base 3 | 10020102213 | 10021001223 |
| Base 4 | 110233334 | 110321214 |
| Base 5 | 11344425 | 11411015 |
| Base 6 | 2422116 | 2430256 |
| Base 7 | 1156427 | 1162527 |
| Base 8 | 513778 | 516318 |
| Base 9 | 321279 | 323189 |
| Base 10 | 2124710 | 2140110 |
| Base 11 | 14a6611 | 1509611 |
| Base 12 | 1036712 | 1047512 |
| Base 13 | 989513 | 998313 |
| Base 14 | 7a5914 | 7b2914 |
| Base 15 | 646715 | 651b15 |
| Base 16 | 52ff16 | 539916 |