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14286431 = 100914159
BaseRepresentation
bin110110011111…
…111001011111
3222212211022002
4312133321133
512124131211
61230112515
7232301255
oct66377137
928784262
1014286431
118078675
12494b73b
132c62913
141c7c5d5
1513c303b
hexd9fe5f

14286431 has 4 divisors (see below), whose sum is σ = 14301600. Its totient is φ = 14271264.

The previous prime is 14286421. The next prime is 14286463. The reversal of 14286431 is 13468241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13468241 = 131102811.

It is a cyclic number.

It is not a de Polignac number, because 14286431 - 26 = 14286367 is a prime.

It is a super-2 number, since 2×142864312 = 408204221435522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14286394 and 14286403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14286421) 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, 6071 + ... + 8088.

It is an arithmetic number, because the mean of its divisors is an integer number (3575400).

Almost surely, 214286431 is an apocalyptic number.

14286431 is a deficient number, since it is larger than the sum of its proper divisors (15169).

14286431 is a wasteful number, since it uses less digits than its factorization.

14286431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15168.

The product of its digits is 4608, while the sum is 29.

The square root of 14286431 is about 3779.7395412912. The cubic root of 14286431 is about 242.6468080480.

The spelling of 14286431 in words is "fourteen million, two hundred eighty-six thousand, four hundred thirty-one".

Divisors: 1 1009 14159 14286431