# Divisors of the Positive Integer 561

1, 3, 11, 17, 33, 51, 187, 561## Sum of all the Divisors of 561, including itself

864## Sum of the Proper Divisors of 561

303## Properties of the number 561

The integer 561 is an**odd**number.

The integer 561 is a

**Composite**number.

303 is

*less than*561, so 561 is a

**deficient**number.

## The number 561 as a Roman Numeral

**DLXI**

## The number 561 in various Numeral Systems

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

2: | 1000110001 |

3: | 202210 |

4: | 20301 |

5: | 4221 |

6: | 2333 |

7: | 1431 |

8: | 1061 |

9: | 683 |

10: | 561 |

11: | 470 |

12: | 3A9 |

13: | 342 |

14: | 2C1 |

15: | 276 |

16: | 231 |

17: | 1G0 |

18: | 1D3 |

19: | 1AA |

20: | 181 |

21: | 15F |

22: | 13B |

23: | 119 |

24: | N9 |

25: | MB |

26: | LF |

27: | KL |

28: | K1 |

29: | JA |

30: | IL |

31: | I3 |

32: | HH |

33: | H0 |

34: | GH |

35: | G1 |

36: | FL |