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18805014 = 233348241
BaseRepresentation
bin100011110111…
…1000100010110
31022101101122000
41013233010112
514303230024
61511020130
7315561054
oct107570426
938341560
1018805014
11a684538
12636a646
133b85537
1426d71d4
1519b6cc9
hex11ef116

18805014 has 16 divisors (see below), whose sum is σ = 41789040. Its totient is φ = 6268320.

The previous prime is 18805013. The next prime is 18805027. The reversal of 18805014 is 41050881.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18805013) 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 7 ways as a sum of consecutive naturals, for example, 174067 + ... + 174174.

It is an arithmetic number, because the mean of its divisors is an integer number (2611815).

Almost surely, 218805014 is an apocalyptic number.

18805014 is an abundant number, since it is smaller than the sum of its proper divisors (22984026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18805014 is a wasteful number, since it uses less digits than its factorization.

18805014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348252 (or 348246 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 18805014 is about 4336.4748356240. The cubic root of 18805014 is about 265.9242156958.

Adding to 18805014 its reverse (41050881), we get a palindrome (59855895).

The spelling of 18805014 in words is "eighteen million, eight hundred five thousand, fourteen".

Divisors: 1 2 3 6 9 18 27 54 348241 696482 1044723 2089446 3134169 6268338 9402507 18805014