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87851116 = 22211104089
BaseRepresentation
bin1010011110010…
…00000001101100
320010022022002001
411033020001230
5134442213431
612414542044
72114502463
oct517100154
9203268061
1087851116
1145653931
1225507924
131527bb12
14b94b9da
157aa4e61
hex53c806c

87851116 has 12 divisors (see below), whose sum is σ = 154469560. Its totient is φ = 43716960.

The previous prime is 87851111. The next prime is 87851119. The reversal of 87851116 is 61115878.

It is not an unprimeable number, because it can be changed into a prime (87851111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51201 + ... + 52888.

Almost surely, 287851116 is an apocalyptic number.

It is an amenable number.

87851116 is a deficient number, since it is larger than the sum of its proper divisors (66618444).

87851116 is a wasteful number, since it uses less digits than its factorization.

87851116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104304 (or 104302 counting only the distinct ones).

The product of its digits is 13440, while the sum is 37.

The square root of 87851116 is about 9372.8926164765. The cubic root of 87851116 is about 444.5450317795.

The spelling of 87851116 in words is "eighty-seven million, eight hundred fifty-one thousand, one hundred sixteen".

Divisors: 1 2 4 211 422 844 104089 208178 416356 21962779 43925558 87851116