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87112330 = 259299377
BaseRepresentation
bin1010011000100…
…11101010001010
320001220202122121
411030103222022
5134300043310
612351041454
72105304544
oct514235212
9201822577
1087112330
1145199868
122521028a
1315080776
14b7d8694
1579ab0da
hex5313a8a

87112330 has 16 divisors (see below), whose sum is σ = 156987720. Its totient is φ = 34803712.

The previous prime is 87112327. The next prime is 87112343. The reversal of 87112330 is 3321178.

It can be written as a sum of positive squares in 4 ways, for example, as 24591681 + 62520649 = 4959^2 + 7907^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87112295 and 87112304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4602 + ... + 13978.

Almost surely, 287112330 is an apocalyptic number.

87112330 is a deficient number, since it is larger than the sum of its proper divisors (69875390).

87112330 is a wasteful number, since it uses less digits than its factorization.

87112330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10313.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 87112330 is about 9333.3986307240. The cubic root of 87112330 is about 443.2953849717.

The spelling of 87112330 in words is "eighty-seven million, one hundred twelve thousand, three hundred thirty".

Divisors: 1 2 5 10 929 1858 4645 9290 9377 18754 46885 93770 8711233 17422466 43556165 87112330