Compare 1445 vs 1447
| Property | 1445 | 1447 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 172 | 14471 |
| Prime factorization | 5 × 17 × 17 | 1447 |
| Divisors count | 6 | 2 |
| Divisors | 1, 5, 17, 85, 289, 1445 | 1, 1447 |
| Number of properties | 0 | 9 |
| Cousin primes (1st member) | 51st | |
| Happy primes | 45th | |
| Isolated primes | 136th | |
| Long primes | 89th | |
| Primes | 229th | |
| Prime triplets (1st member) | 38th | |
| Sexy primes (1st member) | 100th | |
| Sexy prime triplets (1st member) | 38th | |
| Super primes | 50th | |
| Roman numberals | MCDXLV | MCDXLVII |
| Base 2 | 101101001012 | 101101001112 |
| Base 3 | 12221123 | 12221213 |
| Base 4 | 1122114 | 1122134 |
| Base 5 | 212405 | 212425 |
| Base 6 | 104056 | 104116 |
| Base 7 | 41337 | 41357 |
| Base 8 | 26458 | 26478 |
| Base 9 | 18759 | 18779 |
| Base 10 | 144510 | 144710 |
| Base 11 | 10a411 | 10a611 |
| Base 12 | a0512 | a0712 |
| Base 13 | 87213 | 87413 |
| Base 14 | 75314 | 75514 |
| Base 15 | 66515 | 66715 |
| Base 16 | 5a516 | 5a716 |