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14032431 = 327192617
BaseRepresentation
bin110101100001…
…111000101111
3222101220212200
4311201320233
512043014211
61220432543
7230162610
oct65417057
928356780
1014032431
117a14856
124848753
132ba411a
141c13c07
151372b56
hexd61e2f

14032431 has 36 divisors (see below), whose sum is σ = 24487632. Its totient is φ = 7584192.

The previous prime is 14032427. The next prime is 14032441. The reversal of 14032431 is 13423041.

It is not a de Polignac number, because 14032431 - 22 = 14032427 is a prime.

It is a super-2 number, since 2×140324312 = 393818239539522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14032441) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22435 + ... + 23051.

It is an arithmetic number, because the mean of its divisors is an integer number (680212).

Almost surely, 214032431 is an apocalyptic number.

14032431 is a deficient number, since it is larger than the sum of its proper divisors (10455201).

14032431 is a wasteful number, since it uses less digits than its factorization.

14032431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 14032431 is about 3745.9886545477. The cubic root of 14032431 is about 241.2001860514.

Adding to 14032431 its reverse (13423041), we get a palindrome (27455472).

The spelling of 14032431 in words is "fourteen million, thirty-two thousand, four hundred thirty-one".

Divisors: 1 3 7 9 19 21 57 63 133 171 361 399 617 1083 1197 1851 2527 3249 4319 5553 7581 11723 12957 22743 35169 38871 82061 105507 222737 246183 668211 738549 1559159 2004633 4677477 14032431