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18530104 = 239723879
BaseRepresentation
bin100011010101…
…1111100111000
31021212102112011
41012223330320
514220430404
61501055304
7313334425
oct106537470
937772464
1018530104
11a506a3a
126257534
133aba378
142664d4c
151960604
hex11abf38

18530104 has 16 divisors (see below), whose sum is σ = 35103600. Its totient is φ = 9169152.

The previous prime is 18530069. The next prime is 18530107. The reversal of 18530104 is 40103581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18530107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11164 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (2193975).

Almost surely, 218530104 is an apocalyptic number.

It is an amenable number.

18530104 is a deficient number, since it is larger than the sum of its proper divisors (16573496).

18530104 is a wasteful number, since it uses less digits than its factorization.

18530104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23982 (or 23978 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 18530104 is about 4304.6607299531. The cubic root of 18530104 is about 264.6220029096.

Adding to 18530104 its reverse (40103581), we get a palindrome (58633685).

The spelling of 18530104 in words is "eighteen million, five hundred thirty thousand, one hundred four".

Divisors: 1 2 4 8 97 194 388 776 23879 47758 95516 191032 2316263 4632526 9265052 18530104