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18432014 = 219485053
BaseRepresentation
bin100011001010…
…0000000001110
31021200102222012
41012110000032
514204311024
61455021222
7312445436
oct106240016
937612865
1018432014
11a44a277
12620a812
133a84823
14263b2c6
15194150e
hex119400e

18432014 has 8 divisors (see below), whose sum is σ = 29103240. Its totient is φ = 8730936.

The previous prime is 18431999. The next prime is 18432017. The reversal of 18432014 is 41023481.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18432017) 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, 242489 + ... + 242564.

It is an arithmetic number, because the mean of its divisors is an integer number (3637905).

Almost surely, 218432014 is an apocalyptic number.

18432014 is a deficient number, since it is larger than the sum of its proper divisors (10671226).

18432014 is a wasteful number, since it uses less digits than its factorization.

18432014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485074.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 18432014 is about 4293.2521472655. The cubic root of 18432014 is about 264.1542467909.

Adding to 18432014 its reverse (41023481), we get a palindrome (59455495).

The spelling of 18432014 in words is "eighteen million, four hundred thirty-two thousand, fourteen".

Divisors: 1 2 19 38 485053 970106 9216007 18432014