Base | Representation |
---|---|
bin | 1010011100111… |
… | …01011001101000 |
3 | 20002222102120112 |
4 | 11032131121220 |
5 | 134421122040 |
6 | 12411113452 |
7 | 2113144451 |
oct | 516353150 |
9 | 202872515 |
10 | 87676520 |
11 | 45544738 |
12 | 25442888 |
13 | 1521a4c9 |
14 | b904128 |
15 | 7a6d365 |
hex | 539d668 |
87676520 has 32 divisors (see below), whose sum is σ = 200511720. Its totient is φ = 34494720.
The previous prime is 87676499. The next prime is 87676571. The reversal of 87676520 is 2567678.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 55026724 + 32649796 = 7418^2 + 5714^2 .
It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.
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, 15527 + ... + 20406.
Almost surely, 287676520 is an apocalyptic number.
It is an amenable number.
87676520 is an abundant number, since it is smaller than the sum of its proper divisors (112835200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87676520 is a wasteful number, since it uses less digits than its factorization.
87676520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36005 (or 36001 counting only the distinct ones).
The product of its (nonzero) digits is 141120, while the sum is 41.
The square root of 87676520 is about 9363.5741039413. The cubic root of 87676520 is about 444.2503390356.
The spelling of 87676520 in words is "eighty-seven million, six hundred seventy-six thousand, five hundred twenty".
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