Base | Representation |
---|---|
bin | 110001011101100011… |
… | …000101001111101000 |
3 | 12002002021010001200002 |
4 | 301131203011033220 |
5 | 1332231411211120 |
6 | 40221544002132 |
7 | 3560043526655 |
oct | 613543051750 |
9 | 162067101602 |
10 | 53109085160 |
11 | 2058376a81a |
12 | a362160348 |
13 | 5014c290a1 |
14 | 27db610c2c |
15 | 15ac7d5375 |
hex | c5d8c53e8 |
53109085160 has 64 divisors (see below), whose sum is σ = 123403709520. Its totient is φ = 20555182080.
The previous prime is 53109085109. The next prime is 53109085163. The reversal of 53109085160 is 6158090135.
53109085160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 8 ways, for example, as 16351759876 + 36757325284 = 127874^2 + 191722^2 .
It is not an unprimeable number, because it can be changed into a prime (53109085163) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168752 + ... + 367008.
Almost surely, 253109085160 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 53109085160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61701854760).
53109085160 is an abundant number, since it is smaller than the sum of its proper divisors (70294624360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
53109085160 is a wasteful number, since it uses less digits than its factorization.
53109085160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 198486 (or 198482 counting only the distinct ones).
The product of its (nonzero) digits is 32400, while the sum is 38.
The spelling of 53109085160 in words is "fifty-three billion, one hundred nine million, eighty-five thousand, one hundred sixty".
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