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87416072 = 2310927009
BaseRepresentation
bin1010011010111…
…01110100001000
320002111012022022
411031131310020
5134334303242
612401344012
72111011232
oct515356410
9202435268
1087416072
1145386a97
1225338008
1315158ab3
14b877252
157a1b0d2
hex535dd08

87416072 has 8 divisors (see below), whose sum is σ = 163905150. Its totient is φ = 43708032.

The previous prime is 87416071. The next prime is 87416083. The reversal of 87416072 is 27061478.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 85636516 + 1779556 = 9254^2 + 1334^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (87416071) by changing a digit.

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 as a sum of consecutive naturals, namely, 5463497 + ... + 5463512.

Almost surely, 287416072 is an apocalyptic number.

It is an amenable number.

87416072 is a deficient number, since it is larger than the sum of its proper divisors (76489078).

87416072 is a wasteful number, since it uses less digits than its factorization.

87416072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10927015 (or 10927011 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 87416072 is about 9349.6562503656. The cubic root of 87416072 is about 443.8100125937.

The spelling of 87416072 in words is "eighty-seven million, four hundred sixteen thousand, seventy-two".

Divisors: 1 2 4 8 10927009 21854018 43708036 87416072