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87500396 = 22194128081
BaseRepresentation
bin1010011011100…
…10011001101100
320002122110222102
411031302121230
5134400003041
612403234232
72111512124
oct515623154
9202573872
1087500396
1145434385
1225378978
13151882a9
14b899c84
157a3609b
hex537266c

87500396 has 24 divisors (see below), whose sum is σ = 165122160. Its totient is φ = 40435200.

The previous prime is 87500381. The next prime is 87500401. The reversal of 87500396 is 69300578.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10925 + ... + 17156.

It is an arithmetic number, because the mean of its divisors is an integer number (6880090).

Almost surely, 287500396 is an apocalyptic number.

It is an amenable number.

87500396 is a deficient number, since it is larger than the sum of its proper divisors (77621764).

87500396 is a wasteful number, since it uses less digits than its factorization.

87500396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28145 (or 28143 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 87500396 is about 9354.1646340013. The cubic root of 87500396 is about 443.9526706036.

The spelling of 87500396 in words is "eighty-seven million, five hundred thousand, three hundred ninety-six".

Divisors: 1 2 4 19 38 41 76 82 164 779 1558 3116 28081 56162 112324 533539 1067078 1151321 2134156 2302642 4605284 21875099 43750198 87500396