Base | Representation |
---|---|
bin | 1001110001100… |
… | …11100010011110 |
3 | 12201022000220011 |
4 | 10320303202132 |
5 | 131443000110 |
6 | 12045313434 |
7 | 2013663100 |
oct | 470634236 |
9 | 181260804 |
10 | 82000030 |
11 | 42317922 |
12 | 2356587a |
13 | 13cb0838 |
14 | ac67570 |
15 | 72eb48a |
hex | 4e3389e |
82000030 has 48 divisors (see below), whose sum is σ = 174190176. Its totient is φ = 27706560.
The previous prime is 81999997. The next prime is 82000031. The reversal of 82000030 is 3000028.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (82000031) 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, 33612 + ... + 35968.
It is an arithmetic number, because the mean of its divisors is an integer number (3628962).
Almost surely, 282000030 is an apocalyptic number.
82000030 is an abundant number, since it is smaller than the sum of its proper divisors (92190146).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
82000030 is a wasteful number, since it uses less digits than its factorization.
82000030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2449 (or 2442 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 82000030 is about 9055.3867946102. The cubic root of 82000030 is about 434.4482015583.
Adding to 82000030 its reverse (3000028), we get a palindrome (85000058).
The spelling of 82000030 in words is "eighty-two million, thirty", and thus it is an aban number and an uban number.
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