Compare 647 vs 1427
| Property | 647 | 1427 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6471 | 14271 |
| Prime factorization | 647 | 1427 |
| Divisors count | 2 | 2 |
| Divisors | 1, 647 | 1, 1427 |
| Number of properties | 15 | 10 |
| Additive primes | 64th | |
| Chen primes | 82nd | 147th |
| Class 1+ primes | 17th | |
| Cousin primes (2nd member) | 29th | 49th |
| Good primes | 54th | |
| Happy primes | 44th | |
| Isolated primes | 61st | |
| Left-truncatable primes | 39th | |
| Long primes | 43rd | |
| Pierpont primes of the 2nd kind | 17th | |
| Primes | 118th | 225th |
| Prime triplets (1st member) | 37th | |
| Prime triplets (2nd member) | 36th | |
| Prime triplets (3rd member) | 24th | |
| Sexy primes (1st member) | 58th | 98th |
| Sexy primes (2nd member) | 57th | |
| Sexy prime quadrupletss (2nd member) | 7th | |
| Sexy prime triplets (1st member) | 25th | 37th |
| Sexy prime triplets (2nd member) | 24th | |
| Twin primes (1st member) | 47th | |
| Roman numberals | DCXLVII | MCDXXVII |
| Base 2 | 10100001112 | 101100100112 |
| Base 3 | 2122223 | 12212123 |
| Base 4 | 220134 | 1121034 |
| Base 5 | 100425 | 212025 |
| Base 6 | 25556 | 103356 |
| Base 7 | 16137 | 41067 |
| Base 8 | 12078 | 26238 |
| Base 9 | 7889 | 18559 |
| Base 10 | 64710 | 142710 |
| Base 11 | 53911 | 108811 |
| Base 12 | 45b12 | 9ab12 |
| Base 13 | 3aa13 | 85a13 |
| Base 14 | 34314 | 73d14 |
| Base 15 | 2d215 | 65215 |
| Base 16 | 28716 | 59316 |