Compare 642131 vs 642133
| Property | 642131 | 642133 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 917331 | 6421331 |
| Prime factorization | 7 × 91733 | 642133 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 91733, 642131 | 1, 642133 |
| Number of properties | 1 | 5 |
| Additive primes | 20413th | |
| Isolated primes | 40936th | |
| Lucky primes | 5996th | |
| Primes | 52231st | |
| Semiprimes | 137580th | |
| Ulam primes | 3829th | |
| Roman numberals | ||
| Base 2 | 100111001100010100112 | 100111001100010101012 |
| Base 3 | 10121212111223 | 10121212112013 |
| Base 4 | 21303011034 | 21303011114 |
| Base 5 | 1310220115 | 1310220135 |
| Base 6 | 214324556 | 214325016 |
| Base 7 | 53130507 | 53130527 |
| Base 8 | 23461238 | 23461258 |
| Base 9 | 11777489 | 11777519 |
| Base 10 | 64213110 | 64213310 |
| Base 11 | 3a949611 | 3a949811 |
| Base 12 | 26b72b12 | 26b73112 |
| Base 13 | 19637913 | 19637b13 |
| Base 14 | 12a02714 | 12a02914 |
| Base 15 | ca3db15 | ca3dd15 |
| Base 16 | 9cc5316 | 9cc5516 |