Base | Representation |
---|---|
bin | 100010011101… |
… | …1011000101110 |
3 | 1021000000001122 |
4 | 1010323120232 |
5 | 14111202123 |
6 | 1443140542 |
7 | 306404261 |
oct | 104733056 |
9 | 37000048 |
10 | 18069038 |
11 | a221599 |
12 | 6074752 |
13 | 3988550 |
14 | 2584cd8 |
15 | 18bdbc8 |
hex | 113b62e |
18069038 has 32 divisors (see below), whose sum is σ = 31180800. Its totient is φ = 7783776.
The previous prime is 18069031. The next prime is 18069041. The reversal of 18069038 is 83096081.
It is a junction number, because it is equal to n+sod(n) for n = 18068989 and 18069007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18069031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38795 + ... + 39257.
It is an arithmetic number, because the mean of its divisors is an integer number (974400).
Almost surely, 218069038 is an apocalyptic number.
18069038 is a deficient number, since it is larger than the sum of its proper divisors (13111762).
18069038 is a wasteful number, since it uses less digits than its factorization.
18069038 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 576.
The product of its (nonzero) digits is 10368, while the sum is 35.
The square root of 18069038 is about 4250.7691068794. The cubic root of 18069038 is about 262.4087689013.
The spelling of 18069038 in words is "eighteen million, sixty-nine thousand, thirty-eight".
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