Compare 1613 vs 1663
| Property | 1613 | 1663 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16131 | 16631 |
| Prime factorization | 1613 | 1663 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1613 | 1, 1663 |
| Number of properties | 13 | 11 |
| Additive primes | 136th | |
| Cousin primes (1st member) | 59th | |
| Cousin primes (2nd member) | 58th | |
| Happy primes | 50th | |
| Harmonic primes | 88th | 91st |
| Isolated primes | 154th | 158th |
| Left-truncatable primes | 60th | |
| Long primes | 102nd | |
| Lucky primes | 62nd | |
| Primes | 255th | 261st |
| Prime triplets (1st member) | 43rd | |
| Prime triplets (3rd member) | 42nd | |
| Pythagorean primes | 122nd | |
| Sexy primes (1st member) | 110th | 113th |
| Sexy primes (2nd member) | 109th | 112th |
| Sexy prime quadrupletss (3rd member) | 10th | |
| Sexy prime triplets (2nd member) | 42nd | 43rd |
| Sexy prime triplets (3rd member) | 41st | |
| Roman numberals | MDCXIII | MDCLXIII |
| Base 2 | 110010011012 | 110011111112 |
| Base 3 | 20122023 | 20211213 |
| Base 4 | 1210314 | 1213334 |
| Base 5 | 224235 | 231235 |
| Base 6 | 112456 | 114116 |
| Base 7 | 44637 | 45647 |
| Base 8 | 31158 | 31778 |
| Base 9 | 21829 | 22479 |
| Base 10 | 161310 | 166310 |
| Base 11 | 123711 | 128211 |
| Base 12 | b2512 | b6712 |
| Base 13 | 97113 | 9ac13 |
| Base 14 | 83314 | 86b14 |
| Base 15 | 72815 | 75d15 |
| Base 16 | 64d16 | 67f16 |