Compare 1381 vs 1499
| Property | 1381 | 1499 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13811 | 14991 |
| Prime factorization | 1381 | 1499 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1381 | 1, 1499 |
| Number of properties | 7 | 11 |
| Additive primes | 122nd | 130th |
| Chen primes | 144th | 154th |
| Emirps | 64th | 72nd |
| Harmonic primes | 82nd | |
| Isolated primes | 130th | 140th |
| Long primes | 86th | |
| Primes | 221st | 239th |
| Pythagorean primes | 109th | |
| Sexy primes (2nd member) | 105th | |
| Sexy prime quadrupletss (4th member) | 9th | |
| Sexy prime triplets (3rd member) | 40th | |
| Sophie germain primes | 50th | |
| Super primes | 52nd | |
| Roman numberals | MCCCLXXXI | MCDXCIX |
| Base 2 | 101011001012 | 101110110112 |
| Base 3 | 12200113 | 20011123 |
| Base 4 | 1112114 | 1131234 |
| Base 5 | 210115 | 214445 |
| Base 6 | 102216 | 105356 |
| Base 7 | 40127 | 42417 |
| Base 8 | 25458 | 27338 |
| Base 9 | 18049 | 20459 |
| Base 10 | 138110 | 149910 |
| Base 11 | 104611 | 114311 |
| Base 12 | 97112 | a4b12 |
| Base 13 | 82313 | 8b413 |
| Base 14 | 70914 | 79114 |
| Base 15 | 62115 | 69e15 |
| Base 16 | 56516 | 5db16 |