# Divisors of the Positive Integer 91

1, 7, 13, 91## Sum of all the Divisors of 91, including itself

112## Sum of the Proper Divisors of 91

21## Properties of the number 91

The integer 91 is an**odd**number.

The integer 91 is a

**Composite**number.

21 is

*less than*91, so 91 is a

**deficient**number.

## The number 91 as a Roman Numeral

**XCI**

## The number 91 in various Numeral Systems

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

2: | 1011011 |

3: | 10101 |

4: | 1123 |

5: | 331 |

6: | 231 |

7: | 160 |

8: | 133 |

9: | 111 |

10: | 91 |

11: | 83 |

12: | 77 |

13: | 70 |

14: | 67 |

15: | 61 |

16: | 5B |

17: | 56 |

18: | 51 |

19: | 4F |

20: | 4B |

21: | 47 |

22: | 43 |

23: | 3M |

24: | 3J |

25: | 3G |

26: | 3D |

27: | 3A |

28: | 37 |

29: | 34 |

30: | 31 |

31: | 2T |

32: | 2R |

33: | 2P |

34: | 2N |

35: | 2L |

36: | 2J |