Base | Representation |
---|---|
bin | 1010011010101… |
… | …00111010100000 |
3 | 20002102100022002 |
4 | 11031110322200 |
5 | 134332121431 |
6 | 12400503132 |
7 | 2110500032 |
oct | 515247240 |
9 | 202370262 |
10 | 87379616 |
11 | 45361665 |
12 | 2531aaa8 |
13 | 1514531c |
14 | b867c52 |
15 | 7a103cb |
hex | 5354ea0 |
87379616 has 24 divisors (see below), whose sum is σ = 175277844. Its totient is φ = 42864640.
The previous prime is 87379603. The next prime is 87379631. The reversal of 87379616 is 61697378.
It can be written as a sum of positive squares in 2 ways, for example, as 80928016 + 6451600 = 8996^2 + 2540^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24065 + ... + 27456.
Almost surely, 287379616 is an apocalyptic number.
It is an amenable number.
87379616 is an abundant number, since it is smaller than the sum of its proper divisors (87898228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87379616 is a wasteful number, since it uses less digits than its factorization.
87379616 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51584 (or 51576 counting only the distinct ones).
The product of its digits is 381024, while the sum is 47.
The square root of 87379616 is about 9347.7064566663. The cubic root of 87379616 is about 443.7483085038.
The spelling of 87379616 in words is "eighty-seven million, three hundred seventy-nine thousand, six hundred sixteen".
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