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87814130 = 258781413
BaseRepresentation
bin1010011101111…
…10111111110010
320010020102100012
411032332333302
5134440023010
612414054522
72114256605
oct516767762
9203212305
1087814130
1145629068
12254aa442
1315268031
14b93c33c
157a99005
hex53beff2

87814130 has 8 divisors (see below), whose sum is σ = 158065452. Its totient is φ = 35125648.

The previous prime is 87814121. The next prime is 87814159. The reversal of 87814130 is 3141878.

It can be written as a sum of positive squares in 2 ways, for example, as 87740689 + 73441 = 9367^2 + 271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×878141302 = 15422642855313800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4390697 + ... + 4390716.

Almost surely, 287814130 is an apocalyptic number.

87814130 is a deficient number, since it is larger than the sum of its proper divisors (70251322).

87814130 is a wasteful number, since it uses less digits than its factorization.

87814130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781420.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 87814130 is about 9370.9193785882. The cubic root of 87814130 is about 444.4826373891.

The spelling of 87814130 in words is "eighty-seven million, eight hundred fourteen thousand, one hundred thirty".

Divisors: 1 2 5 10 8781413 17562826 43907065 87814130