Discover a lot of information on the number 80: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!

## Mathematical properties of 80

Questions and answers |

Is 80 a prime number? |
No |

Is 80 a perfect number? |
No |

Number of divisors |
10 |

List of dividers |
1, 2, 4, 5, 8, 10, 16, 20, 40, 80 |

Sum of divisors |
186 |

Prime factorization |
2^{4} x 5 |

Prime factors |
2, 5 |

## How to write / spell 80 in letters?

In letters, the number 80 is written as: Eighty. And in other languages? how does it spell?

80 in other languages |

Write 80 in english |
Eighty |

Write 80 in french |
Quatre-vingts |

Write 80 in spanish |
Ochenta |

Write 80 in portuguese |
Oitenta |

## Mathematical representations and links

Other ways to write 80 |

In letter |
Eighty |

In roman numeral |
LXXX |

In binary |
1010000 |

In octal |
120 |

In hexadecimal |
50 |

In US dollars |
USD 80.00 ($) |

In euros |
80,00 EUR (€) |

Some related numbers |

Previous number |
79 |

Next number |
81 |

Next prime number |
83 |

## Mathematical operations

Operations and solutions |

80*2 |
= |
160 |
The double of 80 is 160 |

80*3 |
= |
240 |
The triple of 80 is 240 |

80/2 |
= |
40 |
The half of 80 is 40.000000 |

80/3 |
= |
26.666666666667 |
The third of 80 is 26.666667 |

80^{2} |
= |
6400 |
The square of 80 is 6400.000000 |

80^{3} |
= |
512000 |
The cube of 80 is 512000.000000 |

√80 |
= |
8.9442719099992 |
The square root of 80 is 8.944272 |

log(80) |
= |
4.3820266346739 |
The natural (Neperian) logarithm of 80 is 4.382027 |

log10(80) |
= |
1.9030899869919 |
The decimal logarithm (base 10) of 80 is 1.903090 |

sin(80) |
= |
-0.99388865392338 |
The sine of 80 is -0.993889 |

cos(80) |
= |
-0.11038724383905 |
The cosine of 80 is -0.110387 |

tan(80) |
= |
9.0036549456071 |
The tangent of 80 is 9.003655 |