Compare 638123 vs 638129
| Property | 638123 | 638129 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6381231 | 171 × 375371 |
| Prime factorization | 638123 | 17 × 37537 |
| Divisors count | 2 | 4 |
| Divisors | 1, 638123 | 1, 17, 37537, 638129 |
| Number of properties | 5 | 1 |
| Additive primes | 20308th | |
| Isolated primes | 40710th | |
| Primes | 51951st | |
| Safe primes | 3011th | |
| Semiprimes | 136725th | |
| Sexy primes (2nd member) | 11260th | |
| Roman numberals | ||
| Base 2 | 100110111100101010112 | 100110111100101100012 |
| Base 3 | 10121021000123 | 10121021001023 |
| Base 4 | 21233022234 | 21233023014 |
| Base 5 | 1304044435 | 1304100045 |
| Base 6 | 214021356 | 214021456 |
| Base 7 | 52652637 | 52653027 |
| Base 8 | 23362538 | 23362618 |
| Base 9 | 11723059 | 11723129 |
| Base 10 | 63812310 | 63812910 |
| Base 11 | 3a648211 | 3a648811 |
| Base 12 | 26934b12 | 26935512 |
| Base 13 | 1945b513 | 1945bb13 |
| Base 14 | 1287a314 | 1287a914 |
| Base 15 | c911815 | c911e15 |
| Base 16 | 9bcab16 | 9bcb116 |