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14430431 = 106913499
BaseRepresentation
bin110111000011…
…000011011111
31000011010211102
4313003003133
512143233211
61233143315
7233441141
oct67030337
930133742
1014430431
118166884
1249bab3b
132cb3322
141cb8c91
151400a3b
hexdc30df

14430431 has 4 divisors (see below), whose sum is σ = 14445000. Its totient is φ = 14415864.

The previous prime is 14430419. The next prime is 14430473. The reversal of 14430431 is 13403441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13403441 = 50326647.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14430431 is a prime.

It is a super-2 number, since 2×144304312 = 416474677691522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14430631) 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, 5681 + ... + 7818.

It is an arithmetic number, because the mean of its divisors is an integer number (3611250).

Almost surely, 214430431 is an apocalyptic number.

14430431 is a deficient number, since it is larger than the sum of its proper divisors (14569).

14430431 is a wasteful number, since it uses less digits than its factorization.

14430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14568.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 14430431 is about 3798.7407123940. The cubic root of 14430431 is about 243.4593365472.

Adding to 14430431 its reverse (13403441), we get a palindrome (27833872).

The spelling of 14430431 in words is "fourteen million, four hundred thirty thousand, four hundred thirty-one".

Divisors: 1 1069 13499 14430431