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

bin | 10011000110101001… |

… | …010111100011100101 |

3 | 1221221120002011110122 |

4 | 103012221113203211 |

5 | 314002211233331 |

6 | 13231240131325 |

7 | 1324215146240 |

oct | 230651274345 |

9 | 57846064418 |

10 | 20512602341 |

11 | 8776913820 |

12 | 3b85766b45 |

13 | 1c1b952c2a |

14 | dc83dc257 |

15 | 800c7317b |

hex | 4c6a578e5 |

20512602341 has 16 divisors (see below), whose sum is σ = 25634940288. Its totient is φ = 15945854400.

The previous prime is 20512602317. The next prime is 20512602361. The reversal of 20512602341 is 14320621502.

It is a happy number.

It is not a de Polignac number, because 20512602341 - 2^{14} = 20512585957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number *n* which added to its sum of digits gives 20512602341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20512602301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283970 + ... + 348803.

It is an arithmetic number, because the mean of its divisors is an integer number (1602183768).

Almost surely, 2^{20512602341} is an apocalyptic number.

It is an amenable number.

20512602341 is a deficient number, since it is larger than the sum of its proper divisors (5122337947).

20512602341 is a wasteful number, since it uses less digits than its factorization.

20512602341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633212.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 20512602341 in words is "twenty billion, five hundred twelve million, six hundred two thousand, three hundred forty-one".

Divisors: 1 7 11 77 421 2947 4631 32417 632773 4429411 6960503 48723521 266397433 1864782031 2930371763 20512602341

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