Compare 639211 vs 639223
| Property | 639211 | 639223 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6392111 | 131 × 491711 |
| Prime factorization | 639211 | 13 × 49171 |
| Divisors count | 2 | 4 |
| Divisors | 1, 639211 | 1, 13, 49171, 639223 |
| Number of properties | 3 | 1 |
| Isolated primes | 40768th | |
| Lucky primes | 5970th | |
| Primes | 52017th | |
| Semiprimes | 136980th | |
| Roman numberals | ||
| Base 2 | 100111000000111010112 | 100111000000111101112 |
| Base 3 | 10121102111113 | 10121102112213 |
| Base 4 | 21300032234 | 21300033134 |
| Base 5 | 1304233215 | 1304233435 |
| Base 6 | 214111516 | 214112116 |
| Base 7 | 53014067 | 53014247 |
| Base 8 | 23403538 | 23403678 |
| Base 9 | 11737449 | 11737579 |
| Base 10 | 63921110 | 63922310 |
| Base 11 | 3a728111 | 3a729211 |
| Base 12 | 269ab712 | 269b0712 |
| Base 13 | 194c4113 | 194c5013 |
| Base 14 | 128d3d14 | 128d4b14 |
| Base 15 | c95e115 | c95ed15 |
| Base 16 | 9c0eb16 | 9c0f716 |