# Divisors of the Positive Integer 640

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640## Sum of all the Divisors of 640, including itself

1530## Sum of the Proper Divisors of 640

890## Properties of the number 640

The integer 640 is an**even**number.

The integer 640 is a

**Composite**number.

890 is

*greater than*640, so 640 is an

**abundant**number.

## The number 640 as a Roman Numeral

**DCXL**

## The number 640 in various Numeral Systems

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

2: | 1010000000 |

3: | 212201 |

4: | 22000 |

5: | 10030 |

6: | 2544 |

7: | 1603 |

8: | 1200 |

9: | 781 |

10: | 640 |

11: | 532 |

12: | 454 |

13: | 3A3 |

14: | 33A |

15: | 2CA |

16: | 280 |

17: | 23B |

18: | 1HA |

19: | 1ED |

20: | 1C0 |

21: | 19A |

22: | 172 |

23: | 14J |

24: | 12G |

25: | 10F |

26: | OG |

27: | NJ |

28: | MO |

29: | M2 |

30: | LA |

31: | KK |

32: | K0 |

33: | JD |

34: | IS |

35: | IA |

36: | HS |