Compare 640109 vs 640115
| Property | 640109 | 640115 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6401091 | 51 × 71 × 182891 |
| Prime factorization | 640109 | 5 × 7 × 18289 |
| Divisors count | 2 | 8 |
| Divisors | 1, 640109 | 1, 5, 7, 35, 18289, 91445, 128023, 640115 |
| Number of properties | 3 | 0 |
| Chen primes | 20381st | |
| Isolated primes | 40822nd | |
| Primes | 52085th | |
| Roman numberals | ||
| Base 2 | 100111000100011011012 | 100111000100011100112 |
| Base 3 | 10121120012023 | 10121120012223 |
| Base 4 | 21301012314 | 21301013034 |
| Base 5 | 1304404145 | 1304404305 |
| Base 6 | 214152456 | 214152556 |
| Base 7 | 53041317 | 53041407 |
| Base 8 | 23421558 | 23421638 |
| Base 9 | 11750529 | 11750589 |
| Base 10 | 64010910 | 64011510 |
| Base 11 | 3a7a1811 | 3a7a2311 |
| Base 12 | 26a52512 | 26a52b12 |
| Base 13 | 19548213 | 19548813 |
| Base 14 | 1293c114 | 1293c714 |
| Base 15 | c99de15 | c99e515 |
| Base 16 | 9c46d16 | 9c47316 |