Compare 642238 vs 642247
| Property | 642238 | 642247 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 191 × 169011 | 6422471 |
| Prime factorization | 2 × 19 × 16901 | 642247 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 19, 38, 16901, 33802, 321119, 642238 | 1, 642247 |
| Number of properties | 0 | 6 |
| Isolated primes | 40944th | |
| Lucky primes | 5999th | |
| Primes | 52243rd | |
| Sexy primes (1st member) | 11321st | |
| Sexy primes (2nd member) | 11320th | |
| Sexy prime triplets (2nd member) | 2077th | |
| Roman numberals | ||
| Base 2 | 100111001100101111102 | 100111001100110001112 |
| Base 3 | 10121212221213 | 10121212222213 |
| Base 4 | 21303023324 | 21303030134 |
| Base 5 | 1310224235 | 1310224425 |
| Base 6 | 214331546 | 214332116 |
| Base 7 | 53132627 | 53133047 |
| Base 8 | 23462768 | 23463078 |
| Base 9 | 11778779 | 11778879 |
| Base 10 | 64223810 | 64224710 |
| Base 11 | 3a958311 | 3a959111 |
| Base 12 | 26b7ba12 | 26b80712 |
| Base 13 | 19642c13 | 19643813 |
| Base 14 | 12a0a214 | 12a0ab14 |
| Base 15 | ca45d15 | ca46715 |
| Base 16 | 9ccbe16 | 9ccc716 |