Compare 1609 vs 1709
| Property | 1609 | 1709 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16091 | 17091 |
| Prime factorization | 1609 | 1709 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1609 | 1, 1709 |
| Number of properties | 6 | 8 |
| Additive primes | 142nd | |
| Chen primes | 168th | |
| Cousin primes (1st member) | 58th | |
| Harmonic primes | 87th | 94th |
| Isolated primes | 160th | |
| Long primes | 104th | |
| Primes | 254th | 267th |
| Prime triplets (2nd member) | 42nd | |
| Pythagorean primes | 121st | 129th |
| Twin primes (2nd member) | 51st | |
| Ulam primes | 24th | |
| Roman numberals | MDCIX | MDCCIX |
| Base 2 | 110010010012 | 110101011012 |
| Base 3 | 20121213 | 21000223 |
| Base 4 | 1210214 | 1222314 |
| Base 5 | 224145 | 233145 |
| Base 6 | 112416 | 115256 |
| Base 7 | 44567 | 46617 |
| Base 8 | 31118 | 32558 |
| Base 9 | 21779 | 23089 |
| Base 10 | 160910 | 170910 |
| Base 11 | 123311 | 131411 |
| Base 12 | b2112 | ba512 |
| Base 13 | 96a13 | a1613 |
| Base 14 | 82d14 | 8a114 |
| Base 15 | 72415 | 78e15 |
| Base 16 | 64916 | 6ad16 |