Discover a lot of information on the number 61: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!

## Mathematical properties of 61

Questions and answers |

Is 61 a prime number? |
Yes |

Is 61 a perfect number? |
No |

Number of divisors |
2 |

List of dividers |
1, 61 |

Sum of divisors |
62 |

Prime factorization |
61 |

Prime factors |
61 |

## How to write / spell 61 in letters?

In letters, the number 61 is written as: Sixty-one. And in other languages? how does it spell?

61 in other languages |

Write 61 in english |
Sixty-one |

Write 61 in french |
Soixante et un |

Write 61 in spanish |
Sesenta y uno |

Write 61 in portuguese |
Sessenta e um |

## Decomposition of the number 61

The number 61 is composed of:

1 iteration **of the number 6** : The number 6 (six) is the symbol of harmony. It represents balance, understanding, happiness.... Find out more about the number 6

1 iteration **of the number 1** : The number 1 (one) represents the uniqueness, the unique, a starting point, a beginning.... Find out more about the number 1

## Mathematical representations and links

Other ways to write 61 |

In letter |
Sixty-one |

In roman numeral |
LXI |

In binary |
111101 |

In octal |
75 |

In hexadecimal |
3d |

In US dollars |
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USD 61.00 ($) |

In euros |
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61,00 EUR (€) |

Some related numbers |

Previous number |
60 |

Next number |
62 |

Next prime number |
67 |

## Mathematical operations

Operations and solutions |

61*2 |
= |
122 |
The double of 61 is 122 |

61*3 |
= |
183 |
The triple of 61 is 183 |

61/2 |
= |
30.5 |
The half of 61 is 30.500000 |

61/3 |
= |
20.333333333333 |
The third of 61 is 20.333333 |

61^{2} |
= |
3721 |
The square of 61 is 3721.000000 |

61^{3} |
= |
226981 |
The cube of 61 is 226981.000000 |

√61 |
= |
7.8102496759067 |
The square root of 61 is 7.810250 |

log(61) |
= |
4.1108738641733 |
The natural (Neperian) logarithm of 61 is 4.110874 |

log10(61) |
= |
1.7853298350108 |
The decimal logarithm (base 10) of 61 is 1.785330 |

sin(61) |
= |
-0.96611777000839 |
The sine of 61 is -0.966118 |

cos(61) |
= |
-0.25810163593827 |
The cosine of 61 is -0.258102 |

tan(61) |
= |
3.7431679442724 |
The tangent of 61 is 3.743168 |