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87361504 = 2517160591
BaseRepresentation
bin1010011010100…
…00011111100000
320002101102110021
411031100133200
5134331032004
612400243224
72110363156
oct515203740
9202342407
1087361504
1145349a9a
1225310514
1315139cc9
14b8613d6
157a09d54
hex53507e0

87361504 has 24 divisors (see below), whose sum is σ = 182111328. Its totient is φ = 41111040.

The previous prime is 87361489. The next prime is 87361507. The reversal of 87361504 is 40516378.

It is a super-2 number, since 2×873615042 = 15264064762284032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 87361504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87361507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79752 + ... + 80839.

It is an arithmetic number, because the mean of its divisors is an integer number (7587972).

Almost surely, 287361504 is an apocalyptic number.

It is an amenable number.

87361504 is an abundant number, since it is smaller than the sum of its proper divisors (94749824).

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

87361504 is a wasteful number, since it uses less digits than its factorization.

87361504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160618 (or 160610 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 87361504 is about 9346.7376126646. The cubic root of 87361504 is about 443.7176464146.

The spelling of 87361504 in words is "eighty-seven million, three hundred sixty-one thousand, five hundred four".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 160591 321182 642364 1284728 2569456 2730047 5138912 5460094 10920188 21840376 43680752 87361504