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87065052 = 2238778273
BaseRepresentation
bin1010011000010…
…00000111011100
320001211100210120
411030020013130
5134242040202
612350034540
72105016654
oct514100734
9201740716
1087065052
1145167298
12251a8a50
13150650a9
14b7c5364
15799c0bc
hex53081dc

87065052 has 24 divisors (see below), whose sum is σ = 203408016. Its totient is φ = 28985088.

The previous prime is 87065029. The next prime is 87065053. The reversal of 87065052 is 25056078.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87065053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6388 + ... + 14660.

It is an arithmetic number, because the mean of its divisors is an integer number (8475334).

Almost surely, 287065052 is an apocalyptic number.

It is an amenable number.

87065052 is an abundant number, since it is smaller than the sum of its proper divisors (116342964).

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

87065052 is a wasteful number, since it uses less digits than its factorization.

87065052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9157 (or 9155 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 87065052 is about 9330.8655547061. The cubic root of 87065052 is about 443.2151746967.

The spelling of 87065052 in words is "eighty-seven million, sixty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 12 877 1754 2631 3508 5262 8273 10524 16546 24819 33092 49638 99276 7255421 14510842 21766263 29021684 43532526 87065052