Compare 181 vs 727
| Property | 181 | 727 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1811 | 7271 |
| Prime factorization | 181 | 727 |
| Divisors count | 2 | 2 |
| Divisors | 1, 181 | 1, 727 |
| Number of properties | 8 | 8 |
| Centered square primes | 6th | |
| Chen primes | 33rd | |
| Dihedral primes | 5th | |
| Good primes | 36th | |
| Isolated primes | 70th | |
| Long primes | 16th | 47th |
| Lucky primes | 35th | |
| Palindromic primes | 9th | 15th |
| Primes | 42nd | 129th |
| Pythagorean primes | 19th | |
| Sexy primes (1st member) | 61st | |
| Sexy prime triplets (1st member) | 26th | |
| Twin primes (2nd member) | 13th | |
| Roman numberals | CLXXXI | DCCXXVII |
| Base 2 | 101101012 | 10110101112 |
| Base 3 | 202013 | 2222213 |
| Base 4 | 23114 | 231134 |
| Base 5 | 12115 | 104025 |
| Base 6 | 5016 | 32116 |
| Base 7 | 3467 | 20567 |
| Base 8 | 2658 | 13278 |
| Base 9 | 2219 | 8879 |
| Base 10 | 18110 | 72710 |
| Base 11 | 15511 | 60111 |
| Base 12 | 13112 | 50712 |
| Base 13 | 10c13 | 43c13 |
| Base 14 | cd14 | 39d14 |
| Base 15 | c115 | 33715 |
| Base 16 | b516 | 2d716 |