Compare 16640 vs 16649
| Property | 16640 | 16649 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 10 | 1 |
| Prime factorization | 28 × 51 × 131 | 166491 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 | 16649 |
| Divisors count | 36 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640 | 1, 16649 |
| Number of properties | 0 | 5 |
| Chen primes | 970th | |
| Harmonic primes | 698th | |
| Primes | 1925th | |
| Pythagorean primes | 954th | |
| Twin primes (1st member) | 293rd | |
| Roman numberals | ||
| Base 2 | 1000001000000002 | 1000001000010012 |
| Base 3 | 2112110223 | 2112111223 |
| Base 4 | 100100004 | 100100214 |
| Base 5 | 10130305 | 10130445 |
| Base 6 | 2050126 | 2050256 |
| Base 7 | 663417 | 663537 |
| Base 8 | 404008 | 404118 |
| Base 9 | 247389 | 247489 |
| Base 10 | 1664010 | 1664910 |
| Base 11 | 1155811 | 1156611 |
| Base 12 | 976812 | 977512 |
| Base 13 | 776013 | 776913 |
| Base 14 | 60c814 | 60d314 |
| Base 15 | 4de515 | 4dee15 |
| Base 16 | 410016 | 410916 |