Compare 1787 vs 2129
| Property | 1787 | 2129 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 17871 | 21291 |
| Prime factorization | 1787 | 2129 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1787 | 1, 2129 |
| Number of properties | 7 | 5 |
| Additive primes | 148th | |
| Chen primes | 173rd | 196th |
| Cousin primes (2nd member) | 61st | |
| Primes | 277th | 320th |
| Prime triplets (2nd member) | 45th | |
| Pythagorean primes | 155th | |
| Sophie germain primes | 65th | |
| Super primes | 59th | |
| Twin primes (1st member) | 56th | 66th |
| Roman numberals | MDCCLXXXVII | MMCXXIX |
| Base 2 | 110111110112 | 1000010100012 |
| Base 3 | 21100123 | 22202123 |
| Base 4 | 1233234 | 2011014 |
| Base 5 | 241225 | 320045 |
| Base 6 | 121356 | 135056 |
| Base 7 | 51327 | 61317 |
| Base 8 | 33738 | 41218 |
| Base 9 | 24059 | 28259 |
| Base 10 | 178710 | 212910 |
| Base 11 | 138511 | 166611 |
| Base 12 | 104b12 | 129512 |
| Base 13 | a7613 | c7a13 |
| Base 14 | 91914 | ac114 |
| Base 15 | 7e215 | 96e15 |
| Base 16 | 6fb16 | 85116 |