Base | Representation |
---|---|
bin | 10000110010111010… |
… | …010111110100111000 |
3 | 1201112211012202001110 |
4 | 100302322113310320 |
5 | 243413203010203 |
6 | 12141255520320 |
7 | 1205620512363 |
oct | 206272276470 |
9 | 51484182043 |
10 | 18034031928 |
11 | 7714817120 |
12 | 35b36890a0 |
13 | 19152b7813 |
14 | c311690da |
15 | 70837bd03 |
hex | 432e97d38 |
18034031928 has 64 divisors (see below), whose sum is σ = 49387979520. Its totient is φ = 5442163200.
The previous prime is 18034031927. The next prime is 18034031957. The reversal of 18034031928 is 82913043081.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18034031927) 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, 78100 + ... + 205347.
It is an arithmetic number, because the mean of its divisors is an integer number (771687180).
Almost surely, 218034031928 is an apocalyptic number.
It is an amenable number.
18034031928 is an abundant number, since it is smaller than the sum of its proper divisors (31353947592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18034031928 is a wasteful number, since it uses less digits than its factorization.
18034031928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 283708 (or 283704 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 39.
The spelling of 18034031928 in words is "eighteen billion, thirty-four million, thirty-one thousand, nine hundred twenty-eight".
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