Base | Representation |
---|---|
bin | 100010011110… |
… | …0100110100110 |
3 | 1021000020220020 |
4 | 1010330212212 |
5 | 14111332042 |
6 | 1443220010 |
7 | 306424641 |
oct | 104744646 |
9 | 37006806 |
10 | 18074022 |
11 | a22530a |
12 | 6077606 |
13 | 398a8b5 |
14 | 2586a58 |
15 | 18c03ec |
hex | 113c9a6 |
18074022 has 8 divisors (see below), whose sum is σ = 36148056. Its totient is φ = 6024672.
The previous prime is 18073981. The next prime is 18074027. The reversal of 18074022 is 22047081.
It is a sphenic number, since it is the product of 3 distinct primes.
18074022 is an admirable number.
It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a junction number, because it is equal to n+sod(n) for n = 18073983 and 18074001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18074027) 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, 1506163 + ... + 1506174.
It is an arithmetic number, because the mean of its divisors is an integer number (4518507).
Almost surely, 218074022 is an apocalyptic number.
18074022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18074022 is a wasteful number, since it uses less digits than its factorization.
18074022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3012342.
The product of its (nonzero) digits is 896, while the sum is 24.
The square root of 18074022 is about 4251.3553133089. The cubic root of 18074022 is about 262.4328935037.
The spelling of 18074022 in words is "eighteen million, seventy-four thousand, twenty-two".
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