Compare 1447 vs 1669
| Property | 1447 | 1669 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 14471 | 16691 | 
| Prime factorization | 1447 | 1669 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 1447 | 1, 1669 | 
| Number of properties | 9 | 9 | 
| Chen primes | 166th | |
| Cousin primes (1st member) | 51st | |
| Emirps | 81st | |
| Happy primes | 45th | |
| Isolated primes | 136th | |
| Long primes | 89th | |
| Primes | 229th | 263rd | 
| Prime triplets (1st member) | 38th | |
| Prime triplets (3rd member) | 43rd | |
| Pythagorean primes | 126th | |
| Sexy primes (1st member) | 100th | |
| Sexy primes (2nd member) | 113th | |
| Sexy prime triplets (1st member) | 38th | |
| Sexy prime triplets (3rd member) | 43rd | |
| Super primes | 50th | 56th | 
| Twin primes (2nd member) | 53rd | |
| Roman numberals | MCDXLVII | MDCLXIX | 
| Base 2 | 101101001112 | 110100001012 | 
| Base 3 | 12221213 | 20212113 | 
| Base 4 | 1122134 | 1220114 | 
| Base 5 | 212425 | 231345 | 
| Base 6 | 104116 | 114216 | 
| Base 7 | 41357 | 46037 | 
| Base 8 | 26478 | 32058 | 
| Base 9 | 18779 | 22549 | 
| Base 10 | 144710 | 166910 | 
| Base 11 | 10a611 | 128811 | 
| Base 12 | a0712 | b7112 | 
| Base 13 | 87413 | 9b513 | 
| Base 14 | 75514 | 87314 | 
| Base 15 | 66715 | 76415 | 
| Base 16 | 5a716 | 68516 |