Compare 661237 vs 661245
| Property | 661237 | 661245 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 4 |
| Prime factorization | 6612371 | 31 × 51 × 131 × 33911 |
| Prime factorization | 661237 | 3 × 5 × 13 × 3391 |
| Divisors count | 2 | 16 |
| Divisors | 1, 661237 | 1, 3, 5, 13, 15, 39, 65, 195, 3391, 10173, 16955, 44083, 50865, 132249, 220415, 661245 |
| Number of properties | 3 | 0 |
| Isolated primes | 42085th | |
| Primes | 53668th | |
| Sexy primes (2nd member) | 11588th | |
| Roman numberals | ||
| Base 2 | 101000010110111101012 | 101000010110111111012 |
| Base 3 | 10201210010213 | 10201210011203 |
| Base 4 | 22011233114 | 22011233314 |
| Base 5 | 1321244225 | 1321244405 |
| Base 6 | 221011416 | 221011536 |
| Base 7 | 54225437 | 54225547 |
| Base 8 | 24133658 | 24133758 |
| Base 9 | 12170379 | 12170469 |
| Base 10 | 66123710 | 66124510 |
| Base 11 | 41188511 | 41189211 |
| Base 12 | 27a7b112 | 27a7b912 |
| Base 13 | 1a1c8513 | 1a1c9013 |
| Base 14 | 132d9314 | 132d9b14 |
| Base 15 | d0dc715 | d0dd015 |
| Base 16 | a16f516 | a16fd16 |