# Everything about 2

Discover a lot of information on the number 2: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!

## Numerology and symbolism of the number 2

The number 2 (two) represents double, association, cooperation, union, complementarity. It is the symbol of duality.

## Mathematical properties of 2

Questions and answers |

Is 2 a prime number? |
Yes |

Is 2 a perfect number? |
No |

Number of divisors |
2 |

List of dividers |
1, 2 |

Sum of divisors |
3 |

## How to write / spell 2 in letters?

In letters, the number 2 is written as: Two. And in other languages? how does it spell?

2 in other languages |

Write 2 in english |
Two |

Write 2 in french |
Deux |

Write 2 in spanish |
Dos |

Write 2 in portuguese |
Dois |

## Mathematical representations and links

Other ways to write 2 |

In letter |
Two |

In roman numeral |
II |

In binary |
10 |

In octal |
2 |

In hexadecimal |
2 |

In US dollars |
USD 2.00 ($) |

In euros |
2,00 EUR (€) |

Some related numbers |

Previous number |
1 |

Next number |
3 |

Next prime number |
3 |

## Mathematical operations

Operations and solutions |

2*2 |
= |
4 |
The double of 2 is 4 |

2*3 |
= |
6 |
The triple of 2 is 6 |

2/2 |
= |
1 |
The half of 2 is 1.000000 |

2/3 |
= |
0.66666666666667 |
The third of 2 is 0.666667 |

2^{2} |
= |
4 |
The square of 2 is 4.000000 |

2^{3} |
= |
8 |
The cube of 2 is 8.000000 |

√2 |
= |
1.4142135623731 |
The square root of 2 is 1.414214 |

log(2) |
= |
0.69314718055995 |
The natural (Neperian) logarithm of 2 is 0.693147 |

log10(2) |
= |
0.30102999566398 |
The decimal logarithm (base 10) of 2 is 0.301030 |

sin(2) |
= |
0.90929742682568 |
The sine of 2 is 0.909297 |

cos(2) |
= |
-0.41614683654714 |
The cosine of 2 is -0.416147 |

tan(2) |
= |
-2.1850398632615 |
The tangent of 2 is -2.185040 |