Base | Representation |
---|---|
bin | 1111001000000011… |
… | …00001000101100000 |
3 | 202221221021201010120 |
4 | 13210001201011200 |
5 | 113112331221313 |
6 | 3421444000240 |
7 | 405143464542 |
oct | 74401410540 |
9 | 22857251116 |
10 | 8120570208 |
11 | 3497939653 |
12 | 16a7690080 |
13 | 9c550973a |
14 | 5706d1692 |
15 | 327db4d23 |
hex | 1e4061160 |
8120570208 has 96 divisors (see below), whose sum is σ = 22985907840. Its totient is φ = 2501821440.
The previous prime is 8120570191. The next prime is 8120570209. The reversal of 8120570208 is 8020750218.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8120570209) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20491 + ... + 129077.
It is an arithmetic number, because the mean of its divisors is an integer number (239436540).
Almost surely, 28120570208 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 8120570208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11492953920).
8120570208 is an abundant number, since it is smaller than the sum of its proper divisors (14865337632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8120570208 is a wasteful number, since it uses less digits than its factorization.
8120570208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108660 (or 108652 counting only the distinct ones).
The product of its (nonzero) digits is 8960, while the sum is 33.
The square root of 8120570208 is about 90114.2064715658. The cubic root of 8120570208 is about 2009.9974594656.
The spelling of 8120570208 in words is "eight billion, one hundred twenty million, five hundred seventy thousand, two hundred eight".
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