Base | Representation |
---|---|
bin | 1001110001110… |
… | …00101010101000 |
3 | 12201100002201000 |
4 | 10320320222220 |
5 | 131444133112 |
6 | 12045555000 |
7 | 2014111242 |
oct | 470705250 |
9 | 181302630 |
10 | 82021032 |
11 | 42331685 |
12 | 23575a60 |
13 | 13cba272 |
14 | ac71092 |
15 | 73027dc |
hex | 4e38aa8 |
82021032 has 32 divisors (see below), whose sum is σ = 227836800. Its totient is φ = 27340272.
The previous prime is 82021001. The next prime is 82021057. The reversal of 82021032 is 23012028.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 82020996 and 82021014.
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, 189648 + ... + 190079.
It is an arithmetic number, because the mean of its divisors is an integer number (7119900).
Almost surely, 282021032 is an apocalyptic number.
It is an amenable number.
82021032 is an abundant number, since it is smaller than the sum of its proper divisors (145815768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
82021032 is a wasteful number, since it uses less digits than its factorization.
82021032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 379742 (or 379732 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 82021032 is about 9056.5463616105. The cubic root of 82021032 is about 434.4852889523.
The spelling of 82021032 in words is "eighty-two million, twenty-one thousand, thirty-two".
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