Compare 1621 vs 2063
| Property | 1621 | 2063 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16211 | 20631 |
| Prime factorization | 1621 | 2063 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1621 | 1, 2063 |
| Number of properties | 8 | 11 |
| Additive primes | 160th | |
| Chen primes | 163rd | |
| Good primes | 65th | |
| Happy primes | 57th | |
| Harmonic primes | 89th | |
| Isolated primes | 188th | |
| Long primes | 101st | 119th |
| Primes | 257th | 311th |
| Pythagorean primes | 123rd | |
| Safe primes | 40th | |
| Sexy primes (1st member) | 111th | 131st |
| Solinas primes | 57th | |
| Sophie germain primes | 63rd | |
| Super primes | 55th | 64th |
| Twin primes (2nd member) | 52nd | |
| Roman numberals | MDCXXI | MMLXIII |
| Base 2 | 110010101012 | 1000000011112 |
| Base 3 | 20200013 | 22111023 |
| Base 4 | 1211114 | 2000334 |
| Base 5 | 224415 | 312235 |
| Base 6 | 113016 | 133156 |
| Base 7 | 45047 | 60057 |
| Base 8 | 31258 | 40178 |
| Base 9 | 22019 | 27429 |
| Base 10 | 162110 | 206310 |
| Base 11 | 124411 | 160611 |
| Base 12 | b3112 | 123b12 |
| Base 13 | 97913 | c2913 |
| Base 14 | 83b14 | a7514 |
| Base 15 | 73115 | 92815 |
| Base 16 | 65516 | 80f16 |