Compare 1871 vs 1872
| Property | 1871 | 1872 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 7 |
| Prime factorization | 18711 | 24 × 32 × 131 |
| Prime factorization | 1871 | 2 × 2 × 2 × 2 × 3 × 3 × 13 |
| Divisors count | 2 | 30 |
| Divisors | 1, 1871 | 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872 |
| Number of properties | 11 | 0 |
| Additive primes | 151st | |
| Chen primes | 176th | |
| Cousin primes (2nd member) | 62nd | |
| Good primes | 60th | |
| Primes | 286th | |
| Prime quadruplets (1st member) | 7th | |
| Prime quintuplet 1s (2nd member) | 3rd | |
| Prime triplets (1st member) | 47th | |
| Prime triplets (2nd member) | 46th | |
| Sexy primes (1st member) | 122nd | |
| Twin primes (1st member) | 57th | |
| Roman numberals | MDCCCLXXI | MDCCCLXXII |
| Base 2 | 111010011112 | 111010100002 |
| Base 3 | 21200223 | 21201003 |
| Base 4 | 1310334 | 1311004 |
| Base 5 | 244415 | 244425 |
| Base 6 | 123556 | 124006 |
| Base 7 | 53127 | 53137 |
| Base 8 | 35178 | 35208 |
| Base 9 | 25089 | 25109 |
| Base 10 | 187110 | 187210 |
| Base 11 | 145111 | 145211 |
| Base 12 | 10bb12 | 110012 |
| Base 13 | b0c13 | b1013 |
| Base 14 | 97914 | 97a14 |
| Base 15 | 84b15 | 84c15 |
| Base 16 | 74f16 | 75016 |