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82869684 = 2236905807
BaseRepresentation
bin1001111000001…
…11110110110100
312202221012211120
410330013312310
5132203312214
612120103540
72024244402
oct474076664
9182835746
1082869684
1142861247
1223904bb0
1314226621
14b012472
15741dea9
hex4f07db4

82869684 has 12 divisors (see below), whose sum is σ = 193362624. Its totient is φ = 27623224.

The previous prime is 82869671. The next prime is 82869707. The reversal of 82869684 is 48696828.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3452892 + ... + 3452915.

It is an arithmetic number, because the mean of its divisors is an integer number (16113552).

Almost surely, 282869684 is an apocalyptic number.

It is an amenable number.

82869684 is an abundant number, since it is smaller than the sum of its proper divisors (110492940).

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

82869684 is a wasteful number, since it uses less digits than its factorization.

82869684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905814 (or 6905812 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The square root of 82869684 is about 9103.2787499889. The cubic root of 82869684 is about 435.9786553532.

The spelling of 82869684 in words is "eighty-two million, eight hundred sixty-nine thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 12 6905807 13811614 20717421 27623228 41434842 82869684