Compare 647 vs 863
| Property | 647 | 863 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6471 | 8631 |
| Prime factorization | 647 | 863 |
| Divisors count | 2 | 2 |
| Divisors | 1, 647 | 1, 863 |
| Number of properties | 15 | 12 |
| Additive primes | 64th | 79th |
| Chen primes | 82nd | 102nd |
| Class 1+ primes | 17th | 18th |
| Cousin primes (2nd member) | 29th | 36th |
| Happy primes | 32nd | |
| Isolated primes | 61st | 83rd |
| Left-truncatable primes | 39th | |
| Long primes | 43rd | 53rd |
| Pierpont primes of the 2nd kind | 17th | 18th |
| Primes | 118th | 150th |
| Prime triplets (3rd member) | 24th | 28th |
| Safe primes | 23rd | |
| Sexy primes (1st member) | 58th | |
| Sexy primes (2nd member) | 57th | 67th |
| Sexy prime quadrupletss (2nd member) | 7th | |
| Sexy prime triplets (1st member) | 25th | |
| Sexy prime triplets (2nd member) | 24th | |
| Roman numberals | DCXLVII | DCCCLXIII |
| Base 2 | 10100001112 | 11010111112 |
| Base 3 | 2122223 | 10112223 |
| Base 4 | 220134 | 311334 |
| Base 5 | 100425 | 114235 |
| Base 6 | 25556 | 35556 |
| Base 7 | 16137 | 23427 |
| Base 8 | 12078 | 15378 |
| Base 9 | 7889 | 11589 |
| Base 10 | 64710 | 86310 |
| Base 11 | 53911 | 71511 |
| Base 12 | 45b12 | 5bb12 |
| Base 13 | 3aa13 | 51513 |
| Base 14 | 34314 | 45914 |
| Base 15 | 2d215 | 3c815 |
| Base 16 | 28716 | 35f16 |