Base | Representation |
---|---|
bin | 100110010010100110… |
… | …0000110011100001000 |
3 | 21212020122001211112112 |
4 | 1030211030012130020 |
5 | 2321400421321340 |
6 | 101435234001452 |
7 | 5640460040366 |
oct | 1144514063410 |
9 | 255218054475 |
10 | 82228307720 |
11 | 31966810709 |
12 | 13b2a116288 |
13 | 79a59980b0 |
14 | 3da0aa4636 |
15 | 2213e2d065 |
hex | 1325306708 |
82228307720 has 32 divisors (see below), whose sum is σ = 199245516120. Its totient is φ = 30361221120.
The previous prime is 82228307719. The next prime is 82228307747. The reversal of 82228307720 is 2770382228.
It can be written as a sum of positive squares in 4 ways, for example, as 31793029636 + 50435278084 = 178306^2 + 224578^2 .
It is a super-2 number, since 2×822283077202 (a number of 23 digits) contains 22 as substring.
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, 79065161 + ... + 79066200.
Almost surely, 282228307720 is an apocalyptic number.
It is an amenable number.
82228307720 is an abundant number, since it is smaller than the sum of its proper divisors (117017208400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
82228307720 is a wasteful number, since it uses less digits than its factorization.
82228307720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 158131385 (or 158131381 counting only the distinct ones).
The product of its (nonzero) digits is 150528, while the sum is 41.
Adding to 82228307720 its reverse (2770382228), we get a palindrome (84998689948).
The spelling of 82228307720 in words is "eighty-two billion, two hundred twenty-eight million, three hundred seven thousand, seven hundred twenty".
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