Compare 1381 vs 1481
| Property | 1381 | 1481 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13811 | 14811 |
| Prime factorization | 1381 | 1481 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1381 | 1, 1481 |
| Number of properties | 7 | 13 |
| Additive primes | 122nd | |
| Chen primes | 144th | 152nd |
| Emirps | 64th | |
| Happy primes | 46th | |
| Harmonic primes | 80th | |
| Isolated primes | 130th | |
| Long primes | 86th | |
| Primes | 221st | 234th |
| Prime quadruplets (1st member) | 6th | |
| Prime quintuplet 2s (1st member) | 4th | |
| Prime triplets (1st member) | 39th | |
| Pythagorean primes | 109th | 114th |
| Sexy primes (1st member) | 102nd | |
| Sexy prime quadrupletss (1st member) | 9th | |
| Sexy prime triplets (1st member) | 39th | |
| Sophie germain primes | 49th | |
| Twin primes (1st member) | 49th | |
| Roman numberals | MCCCLXXXI | MCDLXXXI |
| Base 2 | 101011001012 | 101110010012 |
| Base 3 | 12200113 | 20002123 |
| Base 4 | 1112114 | 1130214 |
| Base 5 | 210115 | 214115 |
| Base 6 | 102216 | 105056 |
| Base 7 | 40127 | 42147 |
| Base 8 | 25458 | 27118 |
| Base 9 | 18049 | 20259 |
| Base 10 | 138110 | 148110 |
| Base 11 | 104611 | 112711 |
| Base 12 | 97112 | a3512 |
| Base 13 | 82313 | 89c13 |
| Base 14 | 70914 | 77b14 |
| Base 15 | 62115 | 68b15 |
| Base 16 | 56516 | 5c916 |