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

bin | 10011111101001011000100… |

… | …111111010101010110011001 |

3 | 102111202102002220101210022201 |

4 | 103331023010333111112121 |

5 | 43000432113131211241 |

6 | 510355241113250201 |

7 | 24325634550365152 |

oct | 2375130477252631 |

9 | 374672086353281 |

10 | 87766666663321 |

11 | 25a686a8293a48 |

12 | 9a15927103961 |

13 | 39c84905ba149 |

14 | 1795d02130929 |

15 | a2302bd65931 |

hex | 4fd2c4fd5599 |

87766666663321 has 8 divisors (see below), whose sum is σ = 91838915892224. Its totient is φ = 83771984086560.

The previous prime is 87766666663279. The next prime is 87766666663373. The reversal of 87766666663321 is 12336666666778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^{k}-87766666663321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (87766666664321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19391660721 + ... + 19391665246.

It is an arithmetic number, because the mean of its divisors is an integer number (11479864486528).

Almost surely, 2^{87766666663321} is an apocalyptic number.

87766666663321 is the 5408841-st hex number.

It is an amenable number.

87766666663321 is a deficient number, since it is larger than the sum of its proper divisors (4072249228903).

87766666663321 is a wasteful number, since it uses less digits than its factorization.

87766666663321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38783326071.

The product of its digits is 1975228416, while the sum is 73.

The spelling of 87766666663321 in words is "eighty-seven trillion, seven hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-three thousand, three hundred twenty-one".

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