Compare 661019 vs 661139
| Property | 661019 | 661139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6610191 | 6611391 |
| Prime factorization | 661019 | 661139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 661019 | 1, 661139 |
| Number of properties | 5 | 4 |
| Additive primes | 20941st | |
| Chen primes | 20986th | 20993rd |
| Isolated primes | 42072nd | 42080th |
| Primes | 53649th | 53661st |
| Safe primes | 3098th | 3099th |
| Roman numberals | ||
| Base 2 | 101000010110000110112 | 101000010110100100112 |
| Base 3 | 10201202020123 | 10201202201223 |
| Base 4 | 22011201234 | 22011221034 |
| Base 5 | 1321230345 | 1321240245 |
| Base 6 | 221001356 | 221004556 |
| Base 7 | 54221127 | 54223437 |
| Base 8 | 24130338 | 24132238 |
| Base 9 | 12166659 | 12168189 |
| Base 10 | 66101910 | 66113910 |
| Base 11 | 4116a711 | 4117a611 |
| Base 12 | 27a64b12 | 27a72b12 |
| Base 13 | 1a1b4813 | 1a1c0b13 |
| Base 14 | 132c7914 | 132d2314 |
| Base 15 | d0cce15 | d0d5e15 |
| Base 16 | a161b16 | a169316 |