Compare 1600 vs 1609
| Property | 1600 | 1609 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 8 | 1 |
| Prime factorization | 26 × 52 | 16091 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 | 1609 |
| Divisors count | 21 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600 | 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 | MDC | MDCIX |
| Base 2 | 110010000002 | 110010010012 |
| Base 3 | 20120213 | 20121213 |
| Base 4 | 1210004 | 1210214 |
| Base 5 | 224005 | 224145 |
| Base 6 | 112246 | 112416 |
| Base 7 | 44447 | 44567 |
| Base 8 | 31008 | 31118 |
| Base 9 | 21679 | 21779 |
| Base 10 | 160010 | 160910 |
| Base 11 | 122511 | 123311 |
| Base 12 | b1412 | b2112 |
| Base 13 | 96113 | 96a13 |
| Base 14 | 82414 | 82d14 |
| Base 15 | 71a15 | 72415 |
| Base 16 | 64016 | 64916 |