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87064464 = 2431813843
BaseRepresentation
bin1010011000001…
…11111110010000
320001211022222210
411030013332100
5134242030324
612350032120
72105015154
oct514077620
9201738883
1087064464
1145166903
12251a8640
1315064a46
14b7c5064
15799bd29
hex5307f90

87064464 has 20 divisors (see below), whose sum is σ = 224916656. Its totient is φ = 29021472.

The previous prime is 87064451. The next prime is 87064487. The reversal of 87064464 is 46446078.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 906874 + ... + 906969.

Almost surely, 287064464 is an apocalyptic number.

It is an amenable number.

87064464 is an abundant number, since it is smaller than the sum of its proper divisors (137852192).

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

87064464 is a wasteful number, since it uses less digits than its factorization.

87064464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813854 (or 1813848 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 87064464 is about 9330.8340463219. The cubic root of 87064464 is about 443.2141769327.

The spelling of 87064464 in words is "eighty-seven million, sixty-four thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 1813843 3627686 5441529 7255372 10883058 14510744 21766116 29021488 43532232 87064464