Compare 161861 vs 161869
| Property | 161861 | 161869 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 71 × 191 × 12171 | 1618691 |
| Prime factorization | 7 × 19 × 1217 | 161869 |
| Divisors count | 8 | 2 |
| Divisors | 1, 7, 19, 133, 1217, 8519, 23123, 161861 | 1, 161869 |
| Number of properties | 0 | 8 |
| Additive primes | 6085th | |
| Centered triangular primes | 65th | |
| Cousin primes (1st member) | 1797th | |
| Happy primes | 2296th | |
| Isolated primes | 11202nd | |
| Long primes | 5541st | |
| Primes | 14839th | |
| Pythagorean primes | 7397th | |
| Roman numberals | ||
| Base 2 | 1001111000010001012 | 1001111000010011012 |
| Base 3 | 220200002123 | 220200010113 |
| Base 4 | 2132010114 | 2132010314 |
| Base 5 | 201344215 | 201344345 |
| Base 6 | 32452056 | 32452216 |
| Base 7 | 12426207 | 12426317 |
| Base 8 | 4741058 | 4741158 |
| Base 9 | 2660259 | 2660349 |
| Base 10 | 16186110 | 16186910 |
| Base 11 | 10067711 | 10068411 |
| Base 12 | 7980512 | 7981112 |
| Base 13 | 5889b13 | 588a613 |
| Base 14 | 42db714 | 42dc114 |
| Base 15 | 32e5b15 | 32e6415 |
| Base 16 | 2784516 | 2784d16 |