# Divisors of the Positive Integer 1661

1, 11, 151, 1661## Sum of all the Divisors of 1661, including itself

1824## Sum of the Proper Divisors of 1661

163## Properties of the number 1661

The integer 1661 is an**odd**number.

The integer 1661 is a

**Composite**number.

163 is

*less than*1661, so 1661 is a

**deficient**number.

## The number 1661 as a Roman Numeral

**MDCLXI**

## The number 1661 in various Numeral Systems

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

2: | 11001111101 |

3: | 2021112 |

4: | 121331 |

5: | 23121 |

6: | 11405 |

7: | 4562 |

8: | 3175 |

9: | 2245 |

10: | 1661 |

11: | 1280 |

12: | B65 |

13: | 9AA |

14: | 869 |

15: | 75B |

16: | 67D |

17: | 5CC |

18: | 525 |

19: | 4B8 |

20: | 431 |

21: | 3G2 |

22: | 39B |

23: | 335 |

24: | 2L5 |

25: | 2GB |

26: | 2BN |

27: | 27E |

28: | 239 |

29: | 1S8 |

30: | 1PB |

31: | 1MI |

32: | 1JT |

33: | 1HB |

34: | 1ET |

35: | 1CG |

36: | 1A5 |