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87436084 = 22136116061
BaseRepresentation
bin1010011011000…
…10101100110100
320002112012202111
411031202230310
5134340423314
612402020404
72111123461
oct515425464
9202465674
1087436084
11453a002a
1225347704
1315164c38
14b880668
157a21ec4
hex5362b34

87436084 has 12 divisors (see below), whose sum is σ = 153135108. Its totient is φ = 43683200.

The previous prime is 87436057. The next prime is 87436109. The reversal of 87436084 is 48063478.

It can be written as a sum of positive squares in 2 ways, for example, as 5895184 + 81540900 = 2428^2 + 9030^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2587 + ... + 13474.

It is an arithmetic number, because the mean of its divisors is an integer number (12761259).

Almost surely, 287436084 is an apocalyptic number.

It is an amenable number.

87436084 is a deficient number, since it is larger than the sum of its proper divisors (65699024).

87436084 is a wasteful number, since it uses less digits than its factorization.

87436084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17426 (or 17424 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 87436084 is about 9350.7263888962. The cubic root of 87436084 is about 443.8438768787.

The spelling of 87436084 in words is "eighty-seven million, four hundred thirty-six thousand, eighty-four".

Divisors: 1 2 4 1361 2722 5444 16061 32122 64244 21859021 43718042 87436084