Base | Representation |
---|---|
bin | 101100011101011010… |
… | …010001111100110000 |
3 | 11120012221121011022122 |
4 | 230131122101330300 |
5 | 1240231421200114 |
6 | 33533000253412 |
7 | 3306664614050 |
oct | 543532217460 |
9 | 146187534278 |
10 | 47738068784 |
11 | 1927799370a |
12 | 9303471268 |
13 | 466a2663a3 |
14 | 244c171560 |
15 | 1395ee2e8e |
hex | b1d691f30 |
47738068784 has 120 divisors (see below), whose sum is σ = 116320055040. Its totient is φ = 18539224704.
The previous prime is 47738068771. The next prime is 47738068789. The reversal of 47738068784 is 48786083774.
47738068784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×477380687842 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (47738068789) 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, 1104509 + ... + 1146915.
It is an arithmetic number, because the mean of its divisors is an integer number (969333792).
Almost surely, 247738068784 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 47738068784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58160027520).
47738068784 is an abundant number, since it is smaller than the sum of its proper divisors (68581986256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47738068784 is a wasteful number, since it uses less digits than its factorization.
47738068784 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42487 (or 42458 counting only the distinct ones).
The product of its (nonzero) digits is 50577408, while the sum is 62.
The spelling of 47738068784 in words is "forty-seven billion, seven hundred thirty-eight million, sixty-eight thousand, seven hundred eighty-four".
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