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87034525 = 5210913191
BaseRepresentation
bin1010011000000…
…00101010011101
320001202210220221
411030000222131
5134240101100
612345241341
72104531654
oct514005235
9201683827
1087034525
1145146366
1225193251
1315054226
14b7b819b
15799301a
hex5300a9d

87034525 has 12 divisors (see below), whose sum is σ = 108055584. Its totient is φ = 69542000.

The previous prime is 87034523. The next prime is 87034567. The reversal of 87034525 is 52543078.

It is a happy number.

It is not a de Polignac number, because 87034525 - 21 = 87034523 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87034523) 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 11 ways as a sum of consecutive naturals, for example, 25680 + ... + 28870.

It is an arithmetic number, because the mean of its divisors is an integer number (9004632).

Almost surely, 287034525 is an apocalyptic number.

It is an amenable number.

87034525 is a deficient number, since it is larger than the sum of its proper divisors (21021059).

87034525 is a wasteful number, since it uses less digits than its factorization.

87034525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292 (or 4287 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 87034525 is about 9329.2296037776. The cubic root of 87034525 is about 443.1633681798.

The spelling of 87034525 in words is "eighty-seven million, thirty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 1091 3191 5455 15955 27275 79775 3481381 17406905 87034525