Prime Factorization | - |

Divisors | Every integer |

Count of divisors | ∞ |

Sum of divisors | ∞ |

Previous integer | -1 |

Next integer | 1 |

Is prime? | NO |

Previous prime | |

Next prime | 2 |

0^{th} prime number |
↻ calculating, please wait |

Is a Fibonacci number? | YES |

Next Fibonacci number | 1 |

0^{th} Fibonacci number |
0 |

Zeckendorf representation | 0 |

Is a Pell number? | YES |

Is a regular number? | YES |

Is a perfect number? | YES |

Is a perfect square number? | YES |

Is a perfect cube number? | YES |

Is power of 2? | YES |

Is power of 3? | NO |

Factorial 0! | 1 |

Square 0^{2} |
0 |

Square root √0 | 0 |

Cube 0^{3} |
0 |

Cubic root ∛0 | 0 |

Natural logarithm | -INF |

Decimal logarithm | -INF |

0 modulo 360° | 0° |

Sine of 0 radians | 0 |

Cosine of 0 radians | 1 |

Tangent of 0 radians | 0 |

Sine of 0 degrees | 0 |

Cosine of 0 degrees | 1 |

Tangent of 0 degrees | 0 |

0 degrees in radiants | 0 |

0 radiants in degrees | 0 |

Binary | 0 |

Octal | 0 |

Duodecimal | 0 |

Hexadecimal | 0 |

Looking for good books to read? Take a look at these books if you want to know more about the theory of numbers

To guide today's students through the **key milestones** and developments in number theory

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A comprehensive introduction to number theory, with **complete proofs**, worked examples, and exercises.

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Several of its challenges are so easy to state that everyone can understand them, and yet no-one has ever been able to resolve them.

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In addition to covering the basics, it offers an outstanding introduction to partitions, multiplicativity-divisibility, and more.

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