Compare 661431 vs 661439
| Property | 661431 | 661439 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 471 × 46911 | 6614391 |
| Prime factorization | 3 × 47 × 4691 | 661439 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 47, 141, 4691, 14073, 220477, 661431 | 1, 661439 |
| Number of properties | 0 | 5 |
| Additive primes | 20957th | |
| Isolated primes | 42097th | |
| Primes | 53680th | |
| Safe primes | 3100th | |
| Ulam primes | 3940th | |
| Roman numberals | ||
| Base 2 | 101000010111101101112 | 101000010111101111112 |
| Base 3 | 10201210221103 | 10201210222023 |
| Base 4 | 22011323134 | 22011323334 |
| Base 5 | 1321312115 | 1321312245 |
| Base 6 | 221021036 | 221021156 |
| Base 7 | 54232417 | 54232527 |
| Base 8 | 24136678 | 24136778 |
| Base 9 | 12172739 | 12172829 |
| Base 10 | 66143110 | 66143910 |
| Base 11 | 411a4111 | 411a4911 |
| Base 12 | 27a93312 | 27a93b12 |
| Base 13 | 1a20a413 | 1a20ac13 |
| Base 14 | 13309114 | 13309914 |
| Base 15 | d0ea615 | d0eae15 |
| Base 16 | a17b716 | a17bf16 |