Compare 1612 vs 1621
| Property | 1612 | 1621 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 131 × 311 | 16211 |
| Prime factorization | 2 × 2 × 13 × 31 | 1621 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612 | 1, 1621 |
| Number of properties | 0 | 8 |
| Chen primes | 163rd | |
| Harmonic primes | 89th | |
| Long primes | 101st | |
| Primes | 257th | |
| Pythagorean primes | 123rd | |
| Sexy primes (1st member) | 111th | |
| Super primes | 55th | |
| Twin primes (2nd member) | 52nd | |
| Roman numberals | MDCXII | MDCXXI |
| Base 2 | 110010011002 | 110010101012 |
| Base 3 | 20122013 | 20200013 |
| Base 4 | 1210304 | 1211114 |
| Base 5 | 224225 | 224415 |
| Base 6 | 112446 | 113016 |
| Base 7 | 44627 | 45047 |
| Base 8 | 31148 | 31258 |
| Base 9 | 21819 | 22019 |
| Base 10 | 161210 | 162110 |
| Base 11 | 123611 | 124411 |
| Base 12 | b2412 | b3112 |
| Base 13 | 97013 | 97913 |
| Base 14 | 83214 | 83b14 |
| Base 15 | 72715 | 73115 |
| Base 16 | 64c16 | 65516 |