Base | Representation |
---|---|
bin | 100101101011010101… |
… | …1101100100111001111 |
3 | 21201211211200100100111 |
4 | 1023112223230213033 |
5 | 2311201231043404 |
6 | 101100423340451 |
7 | 5563024525420 |
oct | 1132653544717 |
9 | 251754610314 |
10 | 80911190479 |
11 | 31350291a69 |
12 | 13820bb1727 |
13 | 7825b48b92 |
14 | 3cb7ba9647 |
15 | 21884ab104 |
hex | 12d6aec9cf |
80911190479 has 16 divisors (see below), whose sum is σ = 95669582400. Its totient is φ = 66953263104.
The previous prime is 80911190467. The next prime is 80911190497. The reversal of 80911190479 is 97409111908.
It is not a de Polignac number, because 80911190479 - 211 = 80911188431 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80911190419) 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, 2337007 + ... + 2371375.
It is an arithmetic number, because the mean of its divisors is an integer number (5979348900).
Almost surely, 280911190479 is an apocalyptic number.
80911190479 is a deficient number, since it is larger than the sum of its proper divisors (14758391921).
80911190479 is a wasteful number, since it uses less digits than its factorization.
80911190479 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46002.
The product of its (nonzero) digits is 163296, while the sum is 49.
The spelling of 80911190479 in words is "eighty billion, nine hundred eleven million, one hundred ninety thousand, four hundred seventy-nine".
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