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18053204 = 2213347177
BaseRepresentation
bin100010011011…
…1100001010100
31020222012100012
41010313201110
514110200304
61442535352
7306310151
oct104674124
936865305
1018053204
11a210704
126067558
133981290
14257d228
1518b916e
hex1137854

18053204 has 12 divisors (see below), whose sum is σ = 34023444. Its totient is φ = 8332224.

The previous prime is 18053149. The next prime is 18053209. The reversal of 18053204 is 40235081.

It can be written as a sum of positive squares in 2 ways, for example, as 12040900 + 6012304 = 3470^2 + 2452^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18053204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18053209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173537 + ... + 173640.

It is an arithmetic number, because the mean of its divisors is an integer number (2835287).

Almost surely, 218053204 is an apocalyptic number.

It is an amenable number.

18053204 is a deficient number, since it is larger than the sum of its proper divisors (15970240).

18053204 is a wasteful number, since it uses less digits than its factorization.

18053204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347194 (or 347192 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 18053204 is about 4248.9062121916. The cubic root of 18053204 is about 262.3320964056.

Adding to 18053204 its reverse (40235081), we get a palindrome (58288285).

The spelling of 18053204 in words is "eighteen million, fifty-three thousand, two hundred four".

Divisors: 1 2 4 13 26 52 347177 694354 1388708 4513301 9026602 18053204