Compare 640361 vs 640369
| Property | 640361 | 640369 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 3971 × 16131 | 6403691 |
| Prime factorization | 397 × 1613 | 640369 |
| Divisors count | 4 | 2 |
| Divisors | 1, 397, 1613, 640361 | 1, 640369 |
| Number of properties | 1 | 4 |
| Isolated primes | 40836th | |
| Lucky primes | 5982nd | |
| Primes | 52107th | |
| Semiprimes | 137217th | |
| Sexy primes (2nd member) | 11289th | |
| Roman numberals | ||
| Base 2 | 100111000101011010012 | 100111000101011100012 |
| Base 3 | 10121121020023 | 10121121021013 |
| Base 4 | 21301112214 | 21301113014 |
| Base 5 | 1304424215 | 1304424345 |
| Base 6 | 214203456 | 214204016 |
| Base 7 | 53046417 | 53046527 |
| Base 8 | 23425518 | 23425618 |
| Base 9 | 11753629 | 11753719 |
| Base 10 | 64036110 | 64036910 |
| Base 11 | 3a812711 | 3a813411 |
| Base 12 | 26a6b512 | 26a70112 |
| Base 13 | 19561713 | 19562213 |
| Base 14 | 12952114 | 12952914 |
| Base 15 | c9b0b15 | c9b1415 |
| Base 16 | 9c56916 | 9c57116 |