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18468113 = 433111381
BaseRepresentation
bin100011001110…
…0110100010001
31021202021111012
41012130310101
514211434423
61455500305
7312655616
oct106346421
937667435
1018468113
11a474404
126227695
133a980a1
14264a50d
15194c078
hex119cd11

18468113 has 8 divisors (see below), whose sum is σ = 18972096. Its totient is φ = 17967600.

The previous prime is 18468101. The next prime is 18468127. The reversal of 18468113 is 31186481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18468113 - 24 = 18468097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18468113.

It is not an unprimeable number, because it can be changed into a prime (18468173) 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 7 ways as a sum of consecutive naturals, for example, 12683 + ... + 14063.

It is an arithmetic number, because the mean of its divisors is an integer number (2371512).

Almost surely, 218468113 is an apocalyptic number.

It is an amenable number.

18468113 is a deficient number, since it is larger than the sum of its proper divisors (503983).

18468113 is a wasteful number, since it uses less digits than its factorization.

18468113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735.

The product of its digits is 4608, while the sum is 32.

The square root of 18468113 is about 4297.4542464115. The cubic root of 18468113 is about 264.3265825561.

It can be divided in two parts, 18468 and 113, that added together give a palindrome (18581).

The spelling of 18468113 in words is "eighteen million, four hundred sixty-eight thousand, one hundred thirteen".

Divisors: 1 43 311 1381 13373 59383 429491 18468113