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87680034 = 23213374701
BaseRepresentation
bin1010011100111…
…10010000100010
320002222121101200
411032132100202
5134421230114
612411142030
72113160631
oct516362042
9202877350
1087680034
1145547342
1225444916
131521bca0
14b905518
157a6e409
hex539e422

87680034 has 24 divisors (see below), whose sum is σ = 204587292. Its totient is φ = 26978400.

The previous prime is 87680029. The next prime is 87680057. The reversal of 87680034 is 43008678.

It can be written as a sum of positive squares in 2 ways, for example, as 86545809 + 1134225 = 9303^2 + 1065^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187117 + ... + 187584.

Almost surely, 287680034 is an apocalyptic number.

87680034 is an abundant number, since it is smaller than the sum of its proper divisors (116907258).

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

87680034 is a wasteful number, since it uses less digits than its factorization.

87680034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374722 (or 374719 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 87680034 is about 9363.7617440855. The cubic root of 87680034 is about 444.2562740143.

The spelling of 87680034 in words is "eighty-seven million, six hundred eighty thousand, thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 374701 749402 1124103 2248206 3372309 4871113 6744618 9742226 14613339 29226678 43840017 87680034