Compare 666889 vs 667211
| Property | 666889 | 667211 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6668891 | 6672111 |
| Prime factorization | 666889 | 667211 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666889 | 1, 667211 |
| Number of properties | 3 | 5 |
| Additive primes | 21112th | 21123rd |
| Chen primes | 21152nd | |
| Isolated primes | 42411th | 42427th |
| Primes | 54088th | 54108th |
| Sophie germain primes | 5502nd | |
| Roman numberals | ||
| Base 2 | 101000101101000010012 | 101000101110010010112 |
| Base 3 | 10202122101213 | 10202200201123 |
| Base 4 | 22023100214 | 22023210234 |
| Base 5 | 1323200245 | 1323223215 |
| Base 6 | 221432416 | 221445356 |
| Base 7 | 54451667 | 54461367 |
| Base 8 | 24264118 | 24271138 |
| Base 9 | 12257179 | 12262159 |
| Base 10 | 66688910 | 66721110 |
| Base 11 | 41605311 | 41631611 |
| Base 12 | 281b2112 | 28214b12 |
| Base 13 | 1a471213 | 1a48cc13 |
| Base 14 | 13506d14 | 13521d14 |
| Base 15 | d28e415 | d2a5b15 |
| Base 16 | a2d0916 | a2e4b16 |