Base | Representation |
---|---|
bin | 100010011111… |
… | …0001010011110 |
3 | 1021000120122222 |
4 | 1010332022132 |
5 | 14112033124 |
6 | 1443305342 |
7 | 306452402 |
oct | 104761236 |
9 | 37016588 |
10 | 18080414 |
11 | a22a0a0 |
12 | 607b252 |
13 | 3990791 |
14 | 2589102 |
15 | 18c225e |
hex | 113e29e |
18080414 has 32 divisors (see below), whose sum is σ = 30551040. Its totient is φ = 7956000.
The previous prime is 18080407. The next prime is 18080417. The reversal of 18080414 is 41408081.
It is a super-2 number, since 2×180804142 = 653802740822792, which contains 22 as substring.
It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18080417) 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, 175487 + ... + 175589.
It is an arithmetic number, because the mean of its divisors is an integer number (954720).
Almost surely, 218080414 is an apocalyptic number.
18080414 is a deficient number, since it is larger than the sum of its proper divisors (12470626).
18080414 is a wasteful number, since it uses less digits than its factorization.
18080414 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 296.
The product of its (nonzero) digits is 1024, while the sum is 26.
The square root of 18080414 is about 4252.1070071201. The cubic root of 18080414 is about 262.4638269127.
Adding to 18080414 its reverse (41408081), we get a palindrome (59488495).
The spelling of 18080414 in words is "eighteen million, eighty thousand, four hundred fourteen".
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