Compare 1866 vs 1873
| Property | 1866 | 1873 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 31 × 3111 | 18731 |
| Prime factorization | 2 × 3 × 311 | 1873 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 3, 6, 311, 622, 933, 1866 | 1, 1873 |
| Number of properties | 0 | 17 |
| Additive primes | 152nd | |
| Cousin primes (1st member) | 63rd | |
| Harmonic primes | 104th | |
| Long primes | 113th | |
| Primes | 287th | |
| Prime quadruplets (2nd member) | 7th | |
| Prime quintuplet 1s (3rd member) | 3rd | |
| Prime triplets (1st member) | 48th | |
| Prime triplets (2nd member) | 47th | |
| Prime triplets (3rd member) | 46th | |
| Pythagorean primes | 138th | |
| Sexy primes (1st member) | 123rd | |
| Sexy primes (2nd member) | 121st | |
| Sexy prime quadrupletss (3rd member) | 12th | |
| Sexy prime triplets (2nd member) | 48th | |
| Sexy prime triplets (3rd member) | 47th | |
| Twin primes (2nd member) | 57th | |
| Roman numberals | MDCCCLXVI | MDCCCLXXIII |
| Base 2 | 111010010102 | 111010100012 |
| Base 3 | 21200103 | 21201013 |
| Base 4 | 1310224 | 1311014 |
| Base 5 | 244315 | 244435 |
| Base 6 | 123506 | 124016 |
| Base 7 | 53047 | 53147 |
| Base 8 | 35128 | 35218 |
| Base 9 | 25039 | 25119 |
| Base 10 | 186610 | 187310 |
| Base 11 | 144711 | 145311 |
| Base 12 | 10b612 | 110112 |
| Base 13 | b0713 | b1113 |
| Base 14 | 97414 | 97b14 |
| Base 15 | 84615 | 84d15 |
| Base 16 | 74a16 | 75116 |