Compare 1621 vs 2099
| Property | 1621 | 2099 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16211 | 20991 |
| Prime factorization | 1621 | 2099 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1621 | 1, 2099 |
| Number of properties | 8 | 6 |
| Chen primes | 163rd | 194th |
| Harmonic primes | 89th | |
| Isolated primes | 190th | |
| Long primes | 101st | 121st |
| Primes | 257th | 317th |
| Pythagorean primes | 123rd | |
| Safe primes | 41st | |
| Sexy primes (1st member) | 111th | |
| Super primes | 55th | 66th |
| Twin primes (2nd member) | 52nd | |
| Roman numberals | MDCXXI | MMXCIX |
| Base 2 | 110010101012 | 1000001100112 |
| Base 3 | 20200013 | 22122023 |
| Base 4 | 1211114 | 2003034 |
| Base 5 | 224415 | 313445 |
| Base 6 | 113016 | 134156 |
| Base 7 | 45047 | 60567 |
| Base 8 | 31258 | 40638 |
| Base 9 | 22019 | 27829 |
| Base 10 | 162110 | 209910 |
| Base 11 | 124411 | 163911 |
| Base 12 | b3112 | 126b12 |
| Base 13 | 97913 | c5613 |
| Base 14 | 83b14 | a9d14 |
| Base 15 | 73115 | 94e15 |
| Base 16 | 65516 | 83316 |