Base | Representation |
---|---|
bin | 10000110010100011… |
… | …001100001010001110 |
3 | 1201112101202222211202 |
4 | 100302203030022032 |
5 | 243410124023310 |
6 | 12140521345502 |
7 | 1205515042034 |
oct | 206243141216 |
9 | 51471688752 |
10 | 18027954830 |
11 | 7711346326 |
12 | 35b1638292 |
13 | 1913c6a6c2 |
14 | c30426554 |
15 | 707a7b3a5 |
hex | 4328cc28e |
18027954830 has 16 divisors (see below), whose sum is σ = 33497103744. Its totient is φ = 6978563040.
The previous prime is 18027954811. The next prime is 18027954859. The reversal of 18027954830 is 3845972081.
It is a happy number.
18027954830 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29077037 + ... + 29077656.
It is an arithmetic number, because the mean of its divisors is an integer number (2093568984).
Almost surely, 218027954830 is an apocalyptic number.
18027954830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18027954830 is a deficient number, since it is larger than the sum of its proper divisors (15469148914).
18027954830 is a wasteful number, since it uses less digits than its factorization.
18027954830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58154731.
The product of its (nonzero) digits is 483840, while the sum is 47.
The spelling of 18027954830 in words is "eighteen billion, twenty-seven million, nine hundred fifty-four thousand, eight hundred thirty".
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