Base | Representation |
---|---|
bin | 100110001111000001… |
… | …0001100100101111011 |
3 | 21211221021012100002000 |
4 | 1030132002030211323 |
5 | 2321124204132341 |
6 | 101415305112043 |
7 | 5634501534126 |
oct | 1143602144573 |
9 | 254837170060 |
10 | 82108270971 |
11 | 31904a84291 |
12 | 13ab5a88623 |
13 | 7986b5a52c |
14 | 3d8cb793bd |
15 | 220861b8b6 |
hex | 131e08c97b |
82108270971 has 32 divisors (see below), whose sum is σ = 122792792640. Its totient is φ = 54221529600.
The previous prime is 82108270967. The next prime is 82108270997. The reversal of 82108270971 is 17907280128.
It is not a de Polignac number, because 82108270971 - 22 = 82108270967 is a prime.
It is a super-2 number, since 2×821082709712 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (82108270171) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5670681 + ... + 5685141.
It is an arithmetic number, because the mean of its divisors is an integer number (3837274770).
Almost surely, 282108270971 is an apocalyptic number.
82108270971 is a deficient number, since it is larger than the sum of its proper divisors (40684521669).
82108270971 is a wasteful number, since it uses less digits than its factorization.
82108270971 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16444 (or 16438 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 45.
The spelling of 82108270971 in words is "eighty-two billion, one hundred eight million, two hundred seventy thousand, nine hundred seventy-one".
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