Compare 661949 vs 661955
| Property | 661949 | 661955 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6619491 | 51 × 71 × 189131 |
| Prime factorization | 661949 | 5 × 7 × 18913 |
| Divisors count | 2 | 8 |
| Divisors | 1, 661949 | 1, 5, 7, 35, 18913, 94565, 132391, 661955 |
| Number of properties | 4 | 0 |
| Chen primes | 21008th | |
| Primes | 53713th | |
| Sophie germain primes | 5461st | |
| Twin primes (1st member) | 5795th | |
| Roman numberals | ||
| Base 2 | 101000011001101111012 | 101000011001110000112 |
| Base 3 | 10201220001223 | 10201220002123 |
| Base 4 | 22012123314 | 22012130034 |
| Base 5 | 1321402445 | 1321403105 |
| Base 6 | 221043256 | 221043356 |
| Base 7 | 54246117 | 54246207 |
| Base 8 | 24146758 | 24147038 |
| Base 9 | 12180189 | 12180259 |
| Base 10 | 66194910 | 66195510 |
| Base 11 | 41237211 | 41237811 |
| Base 12 | 27b0a512 | 27b0ab12 |
| Base 13 | 1a23b213 | 1a23b813 |
| Base 14 | 13334114 | 13334714 |
| Base 15 | d11ee15 | d120515 |
| Base 16 | a19bd16 | a19c316 |