# Compare 181 vs 193

Property | 181 | 193 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 181^{1} | 193^{1} |

Prime factorization | 181 | 193 |

Divisors count | 2 | 2 |

Divisors | 1, 181 | 1, 193 |

Number of properties | 8 | 18 |

Additive primes | 25th | |

Centered square primes | 6th | |

Chen primes | 33rd | |

Cousin primes (1st member) | 14th | |

Cuban primes 2 | 3rd | |

Dihedral primes | 5th | |

Happy primes | 12th | |

Harmonic primes | 16th | |

Long primes | 16th | 17th |

Lucky primes | 13th | |

Palindromic primes | 9th | |

Pierpont primes | 13th | |

Primes | 42nd | 44th |

Prime quadruplets (2nd member) | 4th | |

Prime triplets (1st member) | 14th | |

Prime triplets (2nd member) | 13th | |

Proth primes | 8th | |

Pythagorean primes | 19th | 20th |

Sexy primes (1st member) | 26th | |

Solinas primes | 26th | |

Thabit primes of the 2nd kind | 4th | |

Twin primes (2nd member) | 13th | 14th |

Roman numberals | CLXXXI | CXCIII |

Base 2 | 10110101_{2} | 11000001_{2} |

Base 3 | 20201_{3} | 21011_{3} |

Base 4 | 2311_{4} | 3001_{4} |

Base 5 | 1211_{5} | 1233_{5} |

Base 6 | 501_{6} | 521_{6} |

Base 7 | 346_{7} | 364_{7} |

Base 8 | 265_{8} | 301_{8} |

Base 9 | 221_{9} | 234_{9} |

Base 10 | 181_{10} | 193_{10} |

Base 11 | 155_{11} | 166_{11} |

Base 12 | 131_{12} | 141_{12} |

Base 13 | 10c_{13} | 11b_{13} |

Base 14 | cd_{14} | db_{14} |

Base 15 | c1_{15} | cd_{15} |

Base 16 | b5_{16} | c1_{16} |