Base | Representation |
---|---|
bin | 1000001001110… |
… | …01011010001000 |
3 | 11202200200222200 |
4 | 10010321122020 |
5 | 120002030314 |
6 | 10441520200 |
7 | 1460220201 |
oct | 404713210 |
9 | 152620880 |
10 | 68392584 |
11 | 356733a7 |
12 | 1aaa3060 |
13 | 11227cb0 |
14 | 91245a8 |
15 | 600e709 |
hex | 4139688 |
68392584 has 96 divisors (see below), whose sum is σ = 201965400. Its totient is φ = 20782080.
The previous prime is 68392573. The next prime is 68392589. The reversal of 68392584 is 48529386.
68392584 is a `hidden beast` number, since 68 + 3 + 9 + 2 + 584 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 28323684 + 40068900 = 5322^2 + 6330^2 .
It is not an unprimeable number, because it can be changed into a prime (68392589) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82894 + ... + 83714.
Almost surely, 268392584 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68392584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100982700).
68392584 is an abundant number, since it is smaller than the sum of its proper divisors (133572816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68392584 is a wasteful number, since it uses less digits than its factorization.
68392584 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 935 (or 928 counting only the distinct ones).
The product of its digits is 414720, while the sum is 45.
The square root of 68392584 is about 8269.9808947784. The cubic root of 68392584 is about 408.9494899196.
The spelling of 68392584 in words is "sixty-eight million, three hundred ninety-two thousand, five hundred eighty-four".
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