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82080173831 = 198352048303
BaseRepresentation
bin100110001110001011…
…1000000111100000111
321211212022022212001012
41030130113000330013
52321100011030311
6101412422552435
75634010652225
oct1143427007407
9254768285035
1082080173831
11318a0133507
1213aa859871b
1379810a06c6
143d89143b15
152205e1b78b
hex131c5c0f07

82080173831 has 8 divisors (see below), whose sum is σ = 87441150720. Its totient is φ = 76823293752.

The previous prime is 82080173783. The next prime is 82080173843. The reversal of 82080173831 is 13837108028.

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

It is a cyclic number.

It is not a de Polignac number, because 82080173831 - 214 = 82080157447 is a prime.

It is a super-2 number, since 2×820801738312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82080176831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26022575 + ... + 26025728.

It is an arithmetic number, because the mean of its divisors is an integer number (10930143840).

Almost surely, 282080173831 is an apocalyptic number.

82080173831 is a deficient number, since it is larger than the sum of its proper divisors (5360976889).

82080173831 is a wasteful number, since it uses less digits than its factorization.

82080173831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52048405.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 82080173831 in words is "eighty-two billion, eighty million, one hundred seventy-three thousand, eight hundred thirty-one".

Divisors: 1 19 83 1577 52048303 988917757 4320009149 82080173831