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87108014 = 2747132383
BaseRepresentation
bin1010011000100…
…10100110101110
320001220112201202
411030102212232
5134244424024
612351005502
72105256140
oct514224656
9201815652
1087108014
11451965a4
1225209892
131507b806
14b7d6c90
1579a9bae
hex53129ae

87108014 has 16 divisors (see below), whose sum is σ = 152506368. Its totient is φ = 36537432.

The previous prime is 87108011. The next prime is 87108019. The reversal of 87108014 is 41080178.

It is a super-2 number, since 2×871080142 = 15175612206048392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87108011) 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 in 7 ways as a sum of consecutive naturals, for example, 65534 + ... + 66849.

It is an arithmetic number, because the mean of its divisors is an integer number (9531648).

Almost surely, 287108014 is an apocalyptic number.

87108014 is a deficient number, since it is larger than the sum of its proper divisors (65398354).

87108014 is a wasteful number, since it uses less digits than its factorization.

87108014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132439.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 87108014 is about 9333.1674151919. The cubic root of 87108014 is about 443.2880637943.

The spelling of 87108014 in words is "eighty-seven million, one hundred eight thousand, fourteen".

Divisors: 1 2 7 14 47 94 329 658 132383 264766 926681 1853362 6222001 12444002 43554007 87108014