Compare 212209 vs 212218
| Property | 212209 | 212218 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2122091 | 21 × 1061091 |
| Prime factorization | 212209 | 2 × 106109 |
| Divisors count | 2 | 4 |
| Divisors | 1, 212209 | 1, 2, 106109, 212218 |
| Number of properties | 8 | 1 |
| Happy primes | 2889th | |
| Lucky primes | 2429th | |
| Primes | 18992nd | |
| Prime triplets (3rd member) | 884th | |
| Pythagorean primes | 9481st | |
| Semiprimes | 47835th | |
| Sexy primes (2nd member) | 4504th | |
| Twin primes (2nd member) | 2273rd | |
| Ulam primes | 1365th | |
| Roman numberals | ||
| Base 2 | 1100111100111100012 | 1100111100111110102 |
| Base 3 | 1012100021213 | 1012100022213 |
| Base 4 | 3033033014 | 3033033224 |
| Base 5 | 232423145 | 232423335 |
| Base 6 | 43142416 | 43142546 |
| Base 7 | 15424547 | 15424667 |
| Base 8 | 6363618 | 6363728 |
| Base 9 | 3530779 | 3530879 |
| Base 10 | 21220910 | 21221810 |
| Base 11 | 13548811 | 13549611 |
| Base 12 | a298112 | a298a12 |
| Base 13 | 7578a13 | 7579613 |
| Base 14 | 5749b14 | 574a614 |
| Base 15 | 42d2415 | 42d2d15 |
| Base 16 | 33cf116 | 33cfa16 |