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18349041 = 319893617
BaseRepresentation
bin100010111111…
…1101111110001
31021112020011010
41011333233301
514144132131
61453141133
7311651514
oct105775761
937466133
1018349041
11a3a29a7
12618a7a9
133a55b29
142618d7b
151926b46
hex117fbf1

18349041 has 16 divisors (see below), whose sum is σ = 26049600. Its totient is φ = 11455488.

The previous prime is 18349031. The next prime is 18349043. The reversal of 18349041 is 14094381.

It is a happy number.

It is not a de Polignac number, because 18349041 - 26 = 18348977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18349043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3265 + ... + 6881.

It is an arithmetic number, because the mean of its divisors is an integer number (1628100).

Almost surely, 218349041 is an apocalyptic number.

It is an amenable number.

18349041 is a deficient number, since it is larger than the sum of its proper divisors (7700559).

18349041 is a wasteful number, since it uses less digits than its factorization.

18349041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 18349041 is about 4283.5780604537. The cubic root of 18349041 is about 263.7572809323.

The spelling of 18349041 in words is "eighteen million, three hundred forty-nine thousand, forty-one".

Divisors: 1 3 19 57 89 267 1691 3617 5073 10851 68723 206169 321913 965739 6116347 18349041