# Divisors of the Positive Integer 161

1, 7, 23, 161## Sum of all the Divisors of 161, including itself

192## Sum of the Proper Divisors of 161

31## Properties of the number 161

The integer 161 is an**odd**number.

The integer 161 is a

**Composite**number.

31 is

*less than*161, so 161 is a

**deficient**number.

## The number 161 as a Roman Numeral

**CLXI**

## The number 161 in various Numeral Systems

Base |
Representation |
---|---|

2: | 10100001 |

3: | 12222 |

4: | 2201 |

5: | 1121 |

6: | 425 |

7: | 320 |

8: | 241 |

9: | 188 |

10: | 161 |

11: | 137 |

12: | 115 |

13: | C5 |

14: | B7 |

15: | AB |

16: | A1 |

17: | 98 |

18: | 8H |

19: | 89 |

20: | 81 |

21: | 7E |

22: | 77 |

23: | 70 |

24: | 6H |

25: | 6B |

26: | 65 |

27: | 5Q |

28: | 5L |

29: | 5G |

30: | 5B |

31: | 56 |

32: | 51 |

33: | 4T |

34: | 4P |

35: | 4L |

36: | 4H |