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82544072 = 23133125603
BaseRepresentation
bin1001110101110…
…00010111001000
312202022200011212
410322320113020
5132112402242
612105112252
72021420162
oct472702710
9182280155
1082544072
1142659646
1223788688
1314141360
14ad69932
1573a7782
hex4eb85c8

82544072 has 32 divisors (see below), whose sum is σ = 172058880. Its totient is φ = 36866880.

The previous prime is 82544071. The next prime is 82544101. The reversal of 82544072 is 27044528.

It is not an unprimeable number, because it can be changed into a prime (82544071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9578 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (5376840).

Almost surely, 282544072 is an apocalyptic number.

It is an amenable number.

82544072 is an abundant number, since it is smaller than the sum of its proper divisors (89514808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82544072 is a wasteful number, since it uses less digits than its factorization.

82544072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25653 (or 25649 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 82544072 is about 9085.3768221247. The cubic root of 82544072 is about 435.4068892910.

The spelling of 82544072 in words is "eighty-two million, five hundred forty-four thousand, seventy-two".

Divisors: 1 2 4 8 13 26 31 52 62 104 124 248 403 806 1612 3224 25603 51206 102412 204824 332839 665678 793693 1331356 1587386 2662712 3174772 6349544 10318009 20636018 41272036 82544072