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18304053 = 317358903
BaseRepresentation
bin100010111010…
…0110000110101
31021102221102220
41011310300311
514141212203
61452152553
7311403405
oct105646065
937387386
1018304053
11a372119
126168759
133a3b501
142606805
151918653
hex1174c35

18304053 has 8 divisors (see below), whose sum is σ = 25841088. Its totient is φ = 11484864.

The previous prime is 18304051. The next prime is 18304147. The reversal of 18304053 is 35040381.

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

It is not a de Polignac number, because 18304053 - 21 = 18304051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18304051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179401 + ... + 179502.

It is an arithmetic number, because the mean of its divisors is an integer number (3230136).

Almost surely, 218304053 is an apocalyptic number.

It is an amenable number.

18304053 is a deficient number, since it is larger than the sum of its proper divisors (7537035).

18304053 is a wasteful number, since it uses less digits than its factorization.

18304053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358923.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 18304053 is about 4278.3236202980. The cubic root of 18304053 is about 263.5415453458.

The spelling of 18304053 in words is "eighteen million, three hundred four thousand, fifty-three".

Divisors: 1 3 17 51 358903 1076709 6101351 18304053