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

bin | 10101100010101111111110… |

… | …00000110001011000010001 |

3 | 20012201212012202122220001001 |

4 | 22301113333000301120101 |

5 | 22202131333002344141 |

6 | 244431023425542001 |

7 | 12656422546633534 |

oct | 1261277700613021 |

9 | 205655182586031 |

10 | 47373472699921 |

11 | 14104a82351615 |

12 | 53913681a4901 |

13 | 20583b7767854 |

14 | b9ac6175ca1b |

15 | 57245d003a31 |

hex | 2b15ff031611 |

47373472699921 has 3 divisors (see below), whose sum is σ = 47373479582761. Its totient is φ = 47373465817082.

The previous prime is 47373472699909. The next prime is 47373472699939. The reversal of 47373472699921 is 12999627437374.

The square root of 47373472699921 is 6882839.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 47373472699921 - 2^{21} = 47373470602769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47373472699321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3441420 + ... + 10324258.

Almost surely, 2^{47373472699921} is an apocalyptic number.

47373472699921 is the 6882839-th square number.

47373472699921 is the 3441420-th centered octagonal number.

It is an amenable number.

47373472699921 is a deficient number, since it is larger than the sum of its proper divisors (6882840).

47373472699921 is an frugal number, since it uses more digits than its factorization.

47373472699921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765678 (or 6882839 counting only the distinct ones).

The product of its digits is 864162432, while the sum is 73.

The spelling of 47373472699921 in words is "forty-seven trillion, three hundred seventy-three billion, four hundred seventy-two million, six hundred ninety-nine thousand, nine hundred twenty-one".

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