Compare 21247 vs 21383
| Property | 21247 | 21383 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 212471 | 213831 |
| Prime factorization | 21247 | 21383 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21247 | 1, 21383 |
| Number of properties | 3 | 10 |
| Additive primes | 1113th | |
| Cousin primes (2nd member) | 364th | |
| Harmonic primes | 881st | |
| Isolated primes | 1667th | 1675th |
| Long primes | 907th | 910th |
| Primes | 2388th | 2400th |
| Prime triplets (3rd member) | 181st | |
| Safe primes | 201st | |
| Sexy primes (2nd member) | 728th | |
| Sophie germain primes | 348th | |
| Roman numberals | ||
| Base 2 | 1010010111111112 | 1010011100001112 |
| Base 3 | 10020102213 | 10020222223 |
| Base 4 | 110233334 | 110320134 |
| Base 5 | 11344425 | 11410135 |
| Base 6 | 2422116 | 2425556 |
| Base 7 | 1156427 | 1162257 |
| Base 8 | 513778 | 516078 |
| Base 9 | 321279 | 322889 |
| Base 10 | 2124710 | 2138310 |
| Base 11 | 14a6611 | 1507a11 |
| Base 12 | 1036712 | 1045b12 |
| Base 13 | 989513 | 996b13 |
| Base 14 | 7a5914 | 7b1514 |
| Base 15 | 646715 | 650815 |
| Base 16 | 52ff16 | 538716 |