Compare 661013 vs 661019
| Property | 661013 | 661019 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 311 × 213231 | 6610191 |
| Prime factorization | 31 × 21323 | 661019 |
| Divisors count | 4 | 2 |
| Divisors | 1, 31, 21323, 661013 | 1, 661019 |
| Number of properties | 1 | 5 |
| Additive primes | 20941st | |
| Chen primes | 20986th | |
| Isolated primes | 42072nd | |
| Primes | 53649th | |
| Safe primes | 3098th | |
| Semiprimes | 141439th | |
| Roman numberals | ||
| Base 2 | 101000010110000101012 | 101000010110000110112 |
| Base 3 | 10201202012223 | 10201202020123 |
| Base 4 | 22011201114 | 22011201234 |
| Base 5 | 1321230235 | 1321230345 |
| Base 6 | 221001256 | 221001356 |
| Base 7 | 54221037 | 54221127 |
| Base 8 | 24130258 | 24130338 |
| Base 9 | 12166589 | 12166659 |
| Base 10 | 66101310 | 66101910 |
| Base 11 | 4116a111 | 4116a711 |
| Base 12 | 27a64512 | 27a64b12 |
| Base 13 | 1a1b4213 | 1a1b4813 |
| Base 14 | 132c7314 | 132c7914 |
| Base 15 | d0cc815 | d0cce15 |
| Base 16 | a161516 | a161b16 |