Compare 660809 vs 661139
| Property | 660809 | 661139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6608091 | 6611391 |
| Prime factorization | 660809 | 661139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 660809 | 1, 661139 |
| Number of properties | 4 | 4 |
| Additive primes | 20938th | |
| Chen primes | 20981st | 20993rd |
| Isolated primes | 42080th | |
| Primes | 53632nd | 53661st |
| Safe primes | 3099th | |
| Twin primes (1st member) | 5787th | |
| Roman numberals | ||
| Base 2 | 101000010101010010012 | 101000010110100100112 |
| Base 3 | 10201201101023 | 10201202201223 |
| Base 4 | 22011110214 | 22011221034 |
| Base 5 | 1321212145 | 1321240245 |
| Base 6 | 220551456 | 221004556 |
| Base 7 | 54213627 | 54223437 |
| Base 8 | 24125118 | 24132238 |
| Base 9 | 12164129 | 12168189 |
| Base 10 | 66080910 | 66113910 |
| Base 11 | 41152611 | 4117a611 |
| Base 12 | 27a4b512 | 27a72b12 |
| Base 13 | 1a1a1613 | 1a1c0b13 |
| Base 14 | 132b6914 | 132d2314 |
| Base 15 | d0bde15 | d0d5e15 |
| Base 16 | a154916 | a169316 |