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14431131 = 32111311213
BaseRepresentation
bin110111000011…
…001110011011
31000011011210100
4313003032123
512143244011
61233150443
7233443161
oct67031633
930134710
1014431131
118167360
1249bb423
132cb3740
141cb9231
151400d56
hexdc339b

14431131 has 24 divisors (see below), whose sum is σ = 24491376. Its totient is φ = 8072640.

The previous prime is 14431111. The next prime is 14431133. The reversal of 14431131 is 13113441.

It is not a de Polignac number, because 14431131 - 25 = 14431099 is a prime.

It is a super-2 number, since 2×144311312 = 416515083878322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14431133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4320 + ... + 6893.

It is an arithmetic number, because the mean of its divisors is an integer number (1020474).

Almost surely, 214431131 is an apocalyptic number.

14431131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14431131 is a deficient number, since it is larger than the sum of its proper divisors (10060245).

14431131 is a wasteful number, since it uses less digits than its factorization.

14431131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11243 (or 11240 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 14431131 is about 3798.8328470729. The cubic root of 14431131 is about 243.4632731074.

Adding to 14431131 its reverse (13113441), we get a palindrome (27544572).

The spelling of 14431131 in words is "fourteen million, four hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 3 9 11 13 33 39 99 117 143 429 1287 11213 33639 100917 123343 145769 370029 437307 1110087 1311921 1603459 4810377 14431131