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87650132 = 2245494817
BaseRepresentation
bin1010011100101…
…10111101010100
320002221002101012
411032112331110
5134414301012
612410351352
72113004513
oct516267524
9202832335
1087650132
1145526929
122542b558
131520b4ab
14b8d867a
157a65622
hex5396f54

87650132 has 12 divisors (see below), whose sum is σ = 153453300. Its totient is φ = 43806336.

The previous prime is 87650131. The next prime is 87650141. The reversal of 87650132 is 23105678.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33686416 + 53963716 = 5804^2 + 7346^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87650131) 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, 15788 + ... + 20604.

It is an arithmetic number, because the mean of its divisors is an integer number (12787775).

Almost surely, 287650132 is an apocalyptic number.

It is an amenable number.

87650132 is a deficient number, since it is larger than the sum of its proper divisors (65803168).

87650132 is a wasteful number, since it uses less digits than its factorization.

87650132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370 (or 9368 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 87650132 is about 9362.1649205726. The cubic root of 87650132 is about 444.2057658925.

The spelling of 87650132 in words is "eighty-seven million, six hundred fifty thousand, one hundred thirty-two".

Divisors: 1 2 4 4549 4817 9098 9634 18196 19268 21912533 43825066 87650132