Base | Representation |
---|---|
bin | 10000110010100011… |
… | …100010111010101010 |
3 | 1201112101221201201001 |
4 | 100302203202322222 |
5 | 243410140014132 |
6 | 12140523345214 |
7 | 1205515610554 |
oct | 206243427252 |
9 | 51471851631 |
10 | 18028048042 |
11 | 77113aa364 |
12 | 35b168220a |
13 | 1913ca0c64 |
14 | c3044c4d4 |
15 | 707a98ce7 |
hex | 4328e2eaa |
18028048042 has 8 divisors (see below), whose sum is σ = 27043423776. Its totient is φ = 9013573452.
The previous prime is 18028048019. The next prime is 18028048043. The reversal of 18028048042 is 24084082081.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 18028047992 and 18028048010.
It is not an unprimeable number, because it can be changed into a prime (18028048043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172828 + ... + 256759.
It is an arithmetic number, because the mean of its divisors is an integer number (3380427972).
Almost surely, 218028048042 is an apocalyptic number.
18028048042 is a deficient number, since it is larger than the sum of its proper divisors (9015375734).
18028048042 is a wasteful number, since it uses less digits than its factorization.
18028048042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 450572.
The product of its (nonzero) digits is 32768, while the sum is 37.
The spelling of 18028048042 in words is "eighteen billion, twenty-eight million, forty-eight thousand, forty-two".
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