Compare 170 vs 181
| Property | 170 | 181 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 51 × 171 | 1811 |
| Prime factorization | 2 × 5 × 17 | 181 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 5, 10, 17, 34, 85, 170 | 1, 181 |
| Number of properties | 0 | 8 |
| Centered square primes | 6th | |
| Chen primes | 33rd | |
| Dihedral primes | 5th | |
| Long primes | 16th | |
| Palindromic primes | 9th | |
| Primes | 42nd | |
| Pythagorean primes | 19th | |
| Twin primes (2nd member) | 13th | |
| Roman numberals | CLXX | CLXXXI |
| Base 2 | 101010102 | 101101012 |
| Base 3 | 200223 | 202013 |
| Base 4 | 22224 | 23114 |
| Base 5 | 11405 | 12115 |
| Base 6 | 4426 | 5016 |
| Base 7 | 3327 | 3467 |
| Base 8 | 2528 | 2658 |
| Base 9 | 2089 | 2219 |
| Base 10 | 17010 | 18110 |
| Base 11 | 14511 | 15511 |
| Base 12 | 12212 | 13112 |
| Base 13 | 10113 | 10c13 |
| Base 14 | c214 | cd14 |
| Base 15 | b515 | c115 |
| Base 16 | aa16 | b516 |