Compare 161553 vs 161561
| Property | 161553 | 161561 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 31 × 73 × 1571 | 1615611 |
| Prime factorization | 3 × 7 × 7 × 7 × 157 | 161561 |
| Divisors count | 16 | 2 |
| Divisors | 1, 3, 7, 21, 49, 147, 157, 343, 471, 1029, 1099, 3297, 7693, 23079, 53851, 161553 | 1, 161561 |
| Number of properties | 0 | 8 |
| Chen primes | 6316th | |
| Emirps | 3259th | |
| Happy primes | 2292nd | |
| Primes | 14813th | |
| Pythagorean primes | 7387th | |
| Sophie germain primes | 1731st | |
| Super primes | 1735th | |
| Twin primes (1st member) | 1815th | |
| Roman numberals | ||
| Base 2 | 1001110111000100012 | 1001110111000110012 |
| Base 3 | 220121211103 | 220121212023 |
| Base 4 | 2131301014 | 2131301214 |
| Base 5 | 201322035 | 201322215 |
| Base 6 | 32435336 | 32435456 |
| Base 7 | 12420007 | 12420117 |
| Base 8 | 4734218 | 4734318 |
| Base 9 | 2655439 | 2655529 |
| Base 10 | 16155310 | 16156110 |
| Base 11 | 10041711 | 10042411 |
| Base 12 | 795a912 | 795b512 |
| Base 13 | 586c213 | 586ca13 |
| Base 14 | 42c3714 | 42c4114 |
| Base 15 | 32d0315 | 32d0b15 |
| Base 16 | 2771116 | 2771916 |