Base | Representation |
---|---|
bin | 1010011100111… |
… | …01010000011010 |
3 | 20002222101202200 |
4 | 11032131100122 |
5 | 134421112210 |
6 | 12411111030 |
7 | 2113142646 |
oct | 516352032 |
9 | 202871680 |
10 | 87675930 |
11 | 45544251 |
12 | 25442476 |
13 | 1521a164 |
14 | b903c26 |
15 | 7a6d0c0 |
hex | 539d41a |
87675930 has 24 divisors (see below), whose sum is σ = 227957652. Its totient is φ = 23380224.
The previous prime is 87675923. The next prime is 87675941. The reversal of 87675930 is 3957678.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 85988529 + 1687401 = 9273^2 + 1299^2 .
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 486999 + ... + 487178.
Almost surely, 287675930 is an apocalyptic number.
87675930 is an abundant number, since it is smaller than the sum of its proper divisors (140281722).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87675930 is a wasteful number, since it uses less digits than its factorization.
87675930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 974190 (or 974187 counting only the distinct ones).
The product of its (nonzero) digits is 317520, while the sum is 45.
The square root of 87675930 is about 9363.5425988244. The cubic root of 87675930 is about 444.2493425381.
The spelling of 87675930 in words is "eighty-seven million, six hundred seventy-five thousand, nine hundred thirty".
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