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87085084 = 22172355681
BaseRepresentation
bin1010011000011…
…01000000011100
320001212101021111
411030031000130
5134243210314
612350311404
72105132242
oct514150034
9201771244
1087085084
1145180349
12251b8564
1315071248
14b7cc792
1579a2ec4
hex530d01c

87085084 has 24 divisors (see below), whose sum is σ = 168382368. Its totient is φ = 39198720.

The previous prime is 87085081. The next prime is 87085099. The reversal of 87085084 is 48058078.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87085081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26277 + ... + 29404.

It is an arithmetic number, because the mean of its divisors is an integer number (7015932).

Almost surely, 287085084 is an apocalyptic number.

It is an amenable number.

87085084 is a deficient number, since it is larger than the sum of its proper divisors (81297284).

87085084 is a wasteful number, since it uses less digits than its factorization.

87085084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55725 (or 55723 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 87085084 is about 9331.9389196458. The cubic root of 87085084 is about 443.2491638628.

The spelling of 87085084 in words is "eighty-seven million, eighty-five thousand, eighty-four".

Divisors: 1 2 4 17 23 34 46 68 92 391 782 1564 55681 111362 222724 946577 1280663 1893154 2561326 3786308 5122652 21771271 43542542 87085084