Compare 1605 vs 1607
| Property | 1605 | 1607 | 
|---|---|---|
| Type | composite number | prime | 
| Unique factors | 3 | 1 | 
| Total factors | 3 | 1 | 
| Prime factorization | 31 × 51 × 1071 | 16071 | 
| Prime factorization | 3 × 5 × 107 | 1607 | 
| Divisors count | 8 | 2 | 
| Divisors | 1, 3, 5, 15, 107, 321, 535, 1605 | 1, 1607 | 
| Number of properties | 0 | 12 | 
| Chen primes | 161st | |
| Happy primes | 49th | |
| Harmonic primes | 86th | |
| Long primes | 99th | |
| Primes | 253rd | |
| Prime triplets (1st member) | 42nd | |
| Sexy primes (1st member) | 109th | |
| Sexy primes (2nd member) | 108th | |
| Sexy prime quadrupletss (2nd member) | 10th | |
| Sexy prime triplets (1st member) | 42nd | |
| Sexy prime triplets (2nd member) | 41st | |
| Twin primes (1st member) | 51st | |
| Roman numberals | MDCV | MDCVII | 
| Base 2 | 110010001012 | 110010001112 | 
| Base 3 | 20121103 | 20121123 | 
| Base 4 | 1210114 | 1210134 | 
| Base 5 | 224105 | 224125 | 
| Base 6 | 112336 | 112356 | 
| Base 7 | 44527 | 44547 | 
| Base 8 | 31058 | 31078 | 
| Base 9 | 21739 | 21759 | 
| Base 10 | 160510 | 160710 | 
| Base 11 | 122a11 | 123111 | 
| Base 12 | b1912 | b1b12 | 
| Base 13 | 96613 | 96813 | 
| Base 14 | 82914 | 82b14 | 
| Base 15 | 72015 | 72215 | 
| Base 16 | 64516 | 64716 |