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14131439 = 729671039
BaseRepresentation
bin110101111010…
…000011101111
3222120221200122
4311322003233
512104201224
61222515155
7231054350
oct65720357
928527618
1014131439
117a82183
124895abb
132c0a1ca
141c3bd27
15139215e
hexd7a0ef

14131439 has 16 divisors (see below), whose sum is σ = 16972800. Its totient is φ = 11509344.

The previous prime is 14131433. The next prime is 14131457. The reversal of 14131439 is 93413141.

14131439 = T267 + T268 + ... + T469.

It is not a de Polignac number, because 14131439 - 212 = 14127343 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 (14131433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13082 + ... + 14120.

It is an arithmetic number, because the mean of its divisors is an integer number (1060800).

Almost surely, 214131439 is an apocalyptic number.

14131439 is a deficient number, since it is larger than the sum of its proper divisors (2841361).

14131439 is a wasteful number, since it uses less digits than its factorization.

14131439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142.

The product of its digits is 1296, while the sum is 26.

The square root of 14131439 is about 3759.1806288073. The cubic root of 14131439 is about 241.7661322363.

The spelling of 14131439 in words is "fourteen million, one hundred thirty-one thousand, four hundred thirty-nine".

Divisors: 1 7 29 67 203 469 1039 1943 7273 13601 30131 69613 210917 487291 2018777 14131439