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14438143 = 29497867
BaseRepresentation
bin110111000100…
…111011111111
31000011112102001
4313010323333
512144010033
61233243131
7233502466
oct67047377
930145361
1014438143
118171655
124a034a7
132cb69a5
141cbb9dd
151402e7d
hexdc4eff

14438143 has 4 divisors (see below), whose sum is σ = 14936040. Its totient is φ = 13940248.

The previous prime is 14438141. The next prime is 14438173. The reversal of 14438143 is 34183441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34183441 = 50776733.

It is a cyclic number.

It is not a de Polignac number, because 14438143 - 21 = 14438141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14438141) 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 3 ways as a sum of consecutive naturals, for example, 248905 + ... + 248962.

It is an arithmetic number, because the mean of its divisors is an integer number (3734010).

Almost surely, 214438143 is an apocalyptic number.

14438143 is a deficient number, since it is larger than the sum of its proper divisors (497897).

14438143 is an equidigital number, since it uses as much as digits as its factorization.

14438143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497896.

The product of its digits is 4608, while the sum is 28.

The square root of 14438143 is about 3799.7556500386. The cubic root of 14438143 is about 243.5026991705.

The spelling of 14438143 in words is "fourteen million, four hundred thirty-eight thousand, one hundred forty-three".

Divisors: 1 29 497867 14438143