Positive Integers » 20001-30000 » 21801-21900 » 21870

# Divisors of the Positive Integer 21870

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 1215, 1458, 2187, 2430, 3645, 4374, 7290, 10935, 21870## Sum of all the Divisors of 21870, including itself

59040## Sum of the Proper Divisors of 21870

37170## Properties of the number 21870

The integer 21870 is an**even**number.

The integer 21870 is a

**Composite**number.

37170 is

*greater than*21870, so 21870 is an

**abundant**number.

## The number 21870 as a Roman Numeral

**_X_XMDCCCLXX**(Roman Numerals with underscores in front have their values increased by 1,000. The underscore represents a line over the numeral, because the Romans used overlines to multiply by 1,000.)

## The number 21870 in various Numeral Systems

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

2: | 101010101101110 |

3: | 1010000000 |

4: | 11111232 |

5: | 1144440 |

6: | 245130 |

7: | 120522 |

8: | 52556 |

9: | 33000 |

10: | 21870 |

11: | 15482 |

12: | 107A6 |

13: | 9C54 |

14: | 7D82 |

15: | 6730 |

16: | 556E |

17: | 47B8 |

18: | 3D90 |

19: | 33B1 |

20: | 2EDA |

21: | 27C9 |

22: | 2142 |

23: | 1I7K |

24: | 1DN6 |

25: | 19OK |

26: | 1694 |

27: | 1300 |

28: | RP2 |

29: | Q04 |

30: | O90 |

31: | MNF |

32: | LBE |

33: | K2O |

34: | IV8 |

35: | HTU |

36: | GVI |