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87484668 = 2237290389
BaseRepresentation
bin1010011011011…
…10100011111100
320002121200101220
411031232203330
5134344002133
612403033340
72111415225
oct515564374
9202550356
1087484668
1145423587
122536b850
131518109b
14b89424c
157a315b3
hex536e8fc

87484668 has 12 divisors (see below), whose sum is σ = 204130920. Its totient is φ = 29161552.

The previous prime is 87484667. The next prime is 87484673. The reversal of 87484668 is 86648478.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 87484668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87484667) 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, 3645183 + ... + 3645206.

It is an arithmetic number, because the mean of its divisors is an integer number (17010910).

Almost surely, 287484668 is an apocalyptic number.

It is an amenable number.

87484668 is an abundant number, since it is smaller than the sum of its proper divisors (116646252).

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

87484668 is a wasteful number, since it uses less digits than its factorization.

87484668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290396 (or 7290394 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 87484668 is about 9353.3239011594. The cubic root of 87484668 is about 443.9260691773.

The spelling of 87484668 in words is "eighty-seven million, four hundred eighty-four thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 7290389 14580778 21871167 29161556 43742334 87484668