Compare 661949 vs 661957
| Property | 661949 | 661957 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6619491 | 1091 × 60731 |
| Prime factorization | 661949 | 109 × 6073 |
| Divisors count | 2 | 4 |
| Divisors | 1, 661949 | 1, 109, 6073, 661957 |
| Number of properties | 4 | 1 |
| Chen primes | 21008th | |
| Primes | 53713th | |
| Semiprimes | 141644th | |
| Sophie germain primes | 5461st | |
| Twin primes (1st member) | 5795th | |
| Roman numberals | ||
| Base 2 | 101000011001101111012 | 101000011001110001012 |
| Base 3 | 10201220001223 | 10201220002213 |
| Base 4 | 22012123314 | 22012130114 |
| Base 5 | 1321402445 | 1321403125 |
| Base 6 | 221043256 | 221043416 |
| Base 7 | 54246117 | 54246227 |
| Base 8 | 24146758 | 24147058 |
| Base 9 | 12180189 | 12180279 |
| Base 10 | 66194910 | 66195710 |
| Base 11 | 41237211 | 41237a11 |
| Base 12 | 27b0a512 | 27b0b112 |
| Base 13 | 1a23b213 | 1a23ba13 |
| Base 14 | 13334114 | 13334914 |
| Base 15 | d11ee15 | d120715 |
| Base 16 | a19bd16 | a19c516 |