Base | Representation |
---|---|
bin | 10000110101101000… |
… | …010111001011011100 |
3 | 1201200000000222202200 |
4 | 100311220113023130 |
5 | 244011342023312 |
6 | 12150005251500 |
7 | 1210013265333 |
oct | 206550271334 |
9 | 51600028680 |
10 | 18079642332 |
11 | 7738539974 |
12 | 3606a03b90 |
13 | 1921896c1b |
14 | c3723cd1a |
15 | 70c38b0dc |
hex | 435a172dc |
18079642332 has 36 divisors (see below), whose sum is σ = 45705581376. Its totient is φ = 6025985280.
The previous prime is 18079642303. The next prime is 18079642333. The reversal of 18079642332 is 23324697081.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18079642333) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582732 + ... + 612972.
Almost surely, 218079642332 is an apocalyptic number.
18079642332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
18079642332 is an abundant number, since it is smaller than the sum of its proper divisors (27625939044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18079642332 is a wasteful number, since it uses less digits than its factorization.
18079642332 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46858 (or 46853 counting only the distinct ones).
The product of its (nonzero) digits is 435456, while the sum is 45.
The spelling of 18079642332 in words is "eighteen billion, seventy-nine million, six hundred forty-two thousand, three hundred thirty-two".
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