# Divisors of the Positive Integer 1681

1, 41, 1681## Sum of all the Divisors of 1681, including itself

1723## Sum of the Proper Divisors of 1681

42## Properties of the number 1681

The integer 1681 is an**odd**number.

The integer 1681 is a

**Composite**number.

42 is

*less than*1681, so 1681 is a

**deficient**number.

## The number 1681 as a Roman Numeral

**MDCLXXXI**

## The number 1681 in various Numeral Systems

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

2: | 11010010001 |

3: | 2022021 |

4: | 122101 |

5: | 23211 |

6: | 11441 |

7: | 4621 |

8: | 3221 |

9: | 2267 |

10: | 1681 |

11: | 1299 |

12: | B81 |

13: | 9C4 |

14: | 881 |

15: | 771 |

16: | 691 |

17: | 5DF |

18: | 537 |

19: | 4C9 |

20: | 441 |

21: | 3H1 |

22: | 3A9 |

23: | 342 |

24: | 2M1 |

25: | 2H6 |

26: | 2CH |

27: | 287 |

28: | 241 |

29: | 1SS |

30: | 1Q1 |

31: | 1N7 |

32: | 1KH |

33: | 1HV |

34: | 1FF |

35: | 1D1 |

36: | 1AP |