Compare 161945 vs 161957
| Property | 161945 | 161957 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 51 × 72 × 6611 | 1619571 |
| Prime factorization | 5 × 7 × 7 × 661 | 161957 |
| Divisors count | 12 | 2 |
| Divisors | 1, 5, 7, 35, 49, 245, 661, 3305, 4627, 23135, 32389, 161945 | 1, 161957 |
| Number of properties | 0 | 6 |
| Additive primes | 6087th | |
| Happy primes | 2298th | |
| Harmonic primes | 5566th | |
| Isolated primes | 11206th | |
| Primes | 14847th | |
| Pythagorean primes | 7401st | |
| Roman numberals | ||
| Base 2 | 1001111000100110012 | 1001111000101001012 |
| Base 3 | 220200102223 | 220200111023 |
| Base 4 | 2132021214 | 2132022114 |
| Base 5 | 201402405 | 201403125 |
| Base 6 | 32454256 | 32454456 |
| Base 7 | 12431007 | 12431157 |
| Base 8 | 4742318 | 4742458 |
| Base 9 | 2661289 | 2661429 |
| Base 10 | 16194510 | 16195710 |
| Base 11 | 10074311 | 10075411 |
| Base 12 | 7987512 | 7988512 |
| Base 13 | 5893413 | 5894313 |
| Base 14 | 4303714 | 4304514 |
| Base 15 | 32eb515 | 32ec215 |
| Base 16 | 2789916 | 278a516 |