Compare 642223 vs 642227
| Property | 642223 | 642227 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6422231 | 311 × 207171 |
| Prime factorization | 642223 | 31 × 20717 |
| Divisors count | 2 | 4 |
| Divisors | 1, 642223 | 1, 31, 20717, 642227 |
| Number of properties | 6 | 1 |
| Additive primes | 20417th | |
| Isolated primes | 40941st | |
| Lucky primes | 5998th | |
| Primes | 52240th | |
| Semiprimes | 137599th | |
| Sexy primes (2nd member) | 11319th | |
| Sexy prime triplets (3rd member) | 2076th | |
| Roman numberals | ||
| Base 2 | 100111001100101011112 | 100111001100101100112 |
| Base 3 | 10121212220013 | 10121212220123 |
| Base 4 | 21303022334 | 21303023034 |
| Base 5 | 1310223435 | 1310224025 |
| Base 6 | 214331316 | 214331356 |
| Base 7 | 53132417 | 53132457 |
| Base 8 | 23462578 | 23462638 |
| Base 9 | 11778619 | 11778659 |
| Base 10 | 64222310 | 64222710 |
| Base 11 | 3a956a11 | 3a957311 |
| Base 12 | 26b7a712 | 26b7ab12 |
| Base 13 | 19641a13 | 19642113 |
| Base 14 | 12a09114 | 12a09514 |
| Base 15 | ca44d15 | ca45215 |
| Base 16 | 9ccaf16 | 9ccb316 |