Compare 163997 vs 164009
| Property | 163997 | 164009 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 1639971 | 4011 × 4091 |
| Prime factorization | 163997 | 401 × 409 |
| Divisors count | 2 | 4 |
| Divisors | 1, 163997 | 1, 401, 409, 164009 |
| Number of properties | 7 | 1 |
| Cousin primes (2nd member) | 1812th | |
| Emirps | 3321st | |
| Isolated primes | 11341st | |
| Primes | 15016th | |
| Prime triplets (3rd member) | 717th | |
| Pythagorean primes | 7489th | |
| Semiprimes | 37451st | |
| Sexy primes (2nd member) | 3637th | |
| Roman numberals | ||
| Base 2 | 1010000000100111012 | 1010000000101010012 |
| Base 3 | 220222212223 | 220222221023 |
| Base 4 | 2200021314 | 2200022214 |
| Base 5 | 202214425 | 202220145 |
| Base 6 | 33031256 | 33031456 |
| Base 7 | 12520617 | 12521067 |
| Base 8 | 5002358 | 5002518 |
| Base 9 | 2688589 | 2688729 |
| Base 10 | 16399710 | 16400910 |
| Base 11 | 10223911 | 10224a11 |
| Base 12 | 7aaa512 | 7aab512 |
| Base 13 | 5985213 | 5986113 |
| Base 14 | 43aa114 | 43aad14 |
| Base 15 | 338d215 | 338de15 |
| Base 16 | 2809d16 | 280a916 |