Compare 1608 vs 1609
| Property | 1608 | 1609 | 
|---|---|---|
| Type | composite number | prime | 
| Unique factors | 3 | 1 | 
| Total factors | 5 | 1 | 
| Prime factorization | 23 × 31 × 671 | 16091 | 
| Prime factorization | 2 × 2 × 2 × 3 × 67 | 1609 | 
| Divisors count | 16 | 2 | 
| Divisors | 1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608 | 1, 1609 | 
| Number of properties | 0 | 6 | 
| Cousin primes (1st member) | 58th | |
| Harmonic primes | 87th | |
| Primes | 254th | |
| Prime triplets (2nd member) | 42nd | |
| Pythagorean primes | 121st | |
| Twin primes (2nd member) | 51st | |
| Roman numberals | MDCVIII | MDCIX | 
| Base 2 | 110010010002 | 110010010012 | 
| Base 3 | 20121203 | 20121213 | 
| Base 4 | 1210204 | 1210214 | 
| Base 5 | 224135 | 224145 | 
| Base 6 | 112406 | 112416 | 
| Base 7 | 44557 | 44567 | 
| Base 8 | 31108 | 31118 | 
| Base 9 | 21769 | 21779 | 
| Base 10 | 160810 | 160910 | 
| Base 11 | 123211 | 123311 | 
| Base 12 | b2012 | b2112 | 
| Base 13 | 96913 | 96a13 | 
| Base 14 | 82c14 | 82d14 | 
| Base 15 | 72315 | 72415 | 
| Base 16 | 64816 | 64916 |