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18530014 = 229319483
BaseRepresentation
bin100011010101…
…1111011011110
31021212102101211
41012223323132
514220430024
61501055034
7313334236
oct106537336
937772354
1018530014
11a506968
12625747a
133aba309
142664cc6
151960594
hex11abede

18530014 has 8 divisors (see below), whose sum is σ = 28753560. Its totient is φ = 8945496.

The previous prime is 18530011. The next prime is 18530021. The reversal of 18530014 is 41003581.

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

It is a super-2 number, since 2×185300142 = 686722837680392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18530011) 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, 159684 + ... + 159799.

It is an arithmetic number, because the mean of its divisors is an integer number (3594195).

Almost surely, 218530014 is an apocalyptic number.

18530014 is a deficient number, since it is larger than the sum of its proper divisors (10223546).

18530014 is a wasteful number, since it uses less digits than its factorization.

18530014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319514.

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

The square root of 18530014 is about 4304.6502761548. The cubic root of 18530014 is about 264.6215744893.

Adding to 18530014 its reverse (41003581), we get a palindrome (59533595).

The spelling of 18530014 in words is "eighteen million, five hundred thirty thousand, fourteen".

Divisors: 1 2 29 58 319483 638966 9265007 18530014