Compare 639381 vs 639391
| Property | 639381 | 639391 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 671 × 31811 | 6393911 |
| Prime factorization | 3 × 67 × 3181 | 639391 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 67, 201, 3181, 9543, 213127, 639381 | 1, 639391 |
| Number of properties | 0 | 4 |
| Additive primes | 20334th | |
| Chen primes | 20356th | |
| Isolated primes | 40779th | |
| Primes | 52030th | |
| Roman numberals | ||
| Base 2 | 100111000001100101012 | 100111000001100111112 |
| Base 3 | 10121110012103 | 10121110020113 |
| Base 4 | 21300121114 | 21300121334 |
| Base 5 | 1304300115 | 1304300315 |
| Base 6 | 214120336 | 214120516 |
| Base 7 | 53020417 | 53020547 |
| Base 8 | 23406258 | 23406378 |
| Base 9 | 11740539 | 11740649 |
| Base 10 | 63938110 | 63939110 |
| Base 11 | 3a741611 | 3a742511 |
| Base 12 | 26a01912 | 26a02712 |
| Base 13 | 19504213 | 19504c13 |
| Base 14 | 12902114 | 12902b14 |
| Base 15 | c96a615 | c96b115 |
| Base 16 | 9c19516 | 9c19f16 |