Compare 647 vs 683
| Property | 647 | 683 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6471 | 6831 |
| Prime factorization | 647 | 683 |
| Divisors count | 2 | 2 |
| Divisors | 1, 647 | 1, 683 |
| Number of properties | 15 | 10 |
| Additive primes | 64th | 66th |
| Chen primes | 82nd | 86th |
| Class 1+ primes | 17th | |
| Cousin primes (2nd member) | 29th | |
| Happy primes | 28th | |
| Harmonic primes | 49th | |
| Isolated primes | 61st | 65th |
| Left-truncatable primes | 39th | 42nd |
| Long primes | 43rd | |
| Pierpont primes of the 2nd kind | 17th | |
| Primes | 118th | 124th |
| Prime triplets (3rd member) | 24th | |
| Sexy primes (1st member) | 58th | |
| Sexy primes (2nd member) | 57th | 60th |
| Sexy prime quadrupletss (2nd member) | 7th | |
| Sexy prime triplets (1st member) | 25th | |
| Sexy prime triplets (2nd member) | 24th | |
| Sophie germain primes | 31st | |
| Wagstaff primes | 4th | |
| Roman numberals | DCXLVII | DCLXXXIII |
| Base 2 | 10100001112 | 10101010112 |
| Base 3 | 2122223 | 2210223 |
| Base 4 | 220134 | 222234 |
| Base 5 | 100425 | 102135 |
| Base 6 | 25556 | 30556 |
| Base 7 | 16137 | 16647 |
| Base 8 | 12078 | 12538 |
| Base 9 | 7889 | 8389 |
| Base 10 | 64710 | 68310 |
| Base 11 | 53911 | 57111 |
| Base 12 | 45b12 | 48b12 |
| Base 13 | 3aa13 | 40713 |
| Base 14 | 34314 | 36b14 |
| Base 15 | 2d215 | 30815 |
| Base 16 | 28716 | 2ab16 |