Compare 661961 vs 661973
| Property | 661961 | 661973 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 6619611 | 132 × 39171 |
| Prime factorization | 661961 | 13 × 13 × 3917 |
| Divisors count | 2 | 6 |
| Divisors | 1, 661961 | 1, 13, 169, 3917, 50921, 661973 |
| Number of properties | 4 | 0 |
| Additive primes | 20969th | |
| Isolated primes | 42126th | |
| Primes | 53715th | |
| Sophie germain primes | 5462nd | |
| Roman numberals | ||
| Base 2 | 101000011001110010012 | 101000011001110101012 |
| Base 3 | 10201220010023 | 10201220011123 |
| Base 4 | 22012130214 | 22012131114 |
| Base 5 | 1321403215 | 1321403435 |
| Base 6 | 221043456 | 221044056 |
| Base 7 | 54246267 | 54246447 |
| Base 8 | 24147118 | 24147258 |
| Base 9 | 12180329 | 12180459 |
| Base 10 | 66196110 | 66197310 |
| Base 11 | 41238311 | 41239411 |
| Base 12 | 27b0b512 | 27b10512 |
| Base 13 | 1a23c113 | 1a240013 |
| Base 14 | 13334d14 | 13335b14 |
| Base 15 | d120b15 | d121815 |
| Base 16 | a19c916 | a19d516 |