Compare 661019 vs 661117
| Property | 661019 | 661117 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6610191 | 6611171 |
| Prime factorization | 661019 | 661117 |
| Divisors count | 2 | 2 |
| Divisors | 1, 661019 | 1, 661117 |
| Number of properties | 5 | 4 |
| Additive primes | 20941st | |
| Chen primes | 20986th | 20991st |
| Cousin primes (1st member) | 5784th | |
| Isolated primes | 42072nd | 42078th |
| Primes | 53649th | 53659th |
| Safe primes | 3098th | |
| Roman numberals | ||
| Base 2 | 101000010110000110112 | 101000010110011111012 |
| Base 3 | 10201202020123 | 10201202122113 |
| Base 4 | 22011201234 | 22011213314 |
| Base 5 | 1321230345 | 1321234325 |
| Base 6 | 221001356 | 221004216 |
| Base 7 | 54221127 | 54223127 |
| Base 8 | 24130338 | 24131758 |
| Base 9 | 12166659 | 12167849 |
| Base 10 | 66101910 | 66111710 |
| Base 11 | 4116a711 | 41178611 |
| Base 12 | 27a64b12 | 27a71112 |
| Base 13 | 1a1b4813 | 1a1bc213 |
| Base 14 | 132c7914 | 132d0914 |
| Base 15 | d0cce15 | d0d4715 |
| Base 16 | a161b16 | a167d16 |