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82166752 = 254395849
BaseRepresentation
bin1001110010111…
…00001111100000
312201121111121001
410321130033200
5132013314002
612053041344
72015256133
oct471341740
9181544531
1082166752
1142421108
1223626254
131403b6a5
14acac21a
157330a87
hex4e5c3e0

82166752 has 24 divisors (see below), whose sum is σ = 162162000. Its totient is φ = 40982784.

The previous prime is 82166743. The next prime is 82166753. The reversal of 82166752 is 25766128.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82166753) 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 3 ways as a sum of consecutive naturals, for example, 11124 + ... + 16972.

It is an arithmetic number, because the mean of its divisors is an integer number (6756750).

Almost surely, 282166752 is an apocalyptic number.

It is an amenable number.

82166752 is a deficient number, since it is larger than the sum of its proper divisors (79995248).

82166752 is a wasteful number, since it uses less digits than its factorization.

82166752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298 (or 6290 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 82166752 is about 9064.5878008876. The cubic root of 82166752 is about 434.7424414464.

The spelling of 82166752 in words is "eighty-two million, one hundred sixty-six thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 439 878 1756 3512 5849 7024 11698 14048 23396 46792 93584 187168 2567711 5135422 10270844 20541688 41083376 82166752