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14223431 = 61431541
BaseRepresentation
bin110110010000…
…100001000111
3222202121212202
4312100201013
512120122211
61224505115
7231616505
oct66204107
928677782
1014223431
118035302
12491b19b
132c40041
141c63675
1513ae53b
hexd90847

14223431 has 8 divisors (see below), whose sum is σ = 14516928. Its totient is φ = 13932000.

The previous prime is 14223421. The next prime is 14223437. The reversal of 14223431 is 13432241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14223431 is a prime.

It is a super-2 number, since 2×142234312 = 404611978823522, 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 (14223437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26021 + ... + 26561.

It is an arithmetic number, because the mean of its divisors is an integer number (1814616).

Almost surely, 214223431 is an apocalyptic number.

14223431 is a deficient number, since it is larger than the sum of its proper divisors (293497).

14223431 is an equidigital number, since it uses as much as digits as its factorization.

14223431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033.

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

The square root of 14223431 is about 3771.3964257288. The cubic root of 14223431 is about 242.2896095633.

Adding to 14223431 its reverse (13432241), we get a palindrome (27655672).

The spelling of 14223431 in words is "fourteen million, two hundred twenty-three thousand, four hundred thirty-one".

Divisors: 1 61 431 541 26291 33001 233171 14223431