Compare 661019 vs 661028
| Property | 661019 | 661028 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 6610191 | 22 × 171 × 97211 |
| Prime factorization | 661019 | 2 × 2 × 17 × 9721 |
| Divisors count | 2 | 12 |
| Divisors | 1, 661019 | 1, 2, 4, 17, 34, 68, 9721, 19442, 38884, 165257, 330514, 661028 |
| Number of properties | 5 | 0 |
| Additive primes | 20941st | |
| Chen primes | 20986th | |
| Isolated primes | 42072nd | |
| Primes | 53649th | |
| Safe primes | 3098th | |
| Roman numberals | ||
| Base 2 | 101000010110000110112 | 101000010110001001002 |
| Base 3 | 10201202020123 | 10201202021123 |
| Base 4 | 22011201234 | 22011202104 |
| Base 5 | 1321230345 | 1321231035 |
| Base 6 | 221001356 | 221001526 |
| Base 7 | 54221127 | 54221247 |
| Base 8 | 24130338 | 24130448 |
| Base 9 | 12166659 | 12166759 |
| Base 10 | 66101910 | 66102810 |
| Base 11 | 4116a711 | 41170511 |
| Base 12 | 27a64b12 | 27a65812 |
| Base 13 | 1a1b4813 | 1a1b5413 |
| Base 14 | 132c7914 | 132c8414 |
| Base 15 | d0cce15 | d0cd815 |
| Base 16 | a161b16 | a162416 |