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14511431 = 117916699
BaseRepresentation
bin110111010110…
…110101000111
31000022020221102
4313112311013
512203331211
61235010315
7234226244
oct67266507
930266842
1014511431
118211720
124a3999b
13301115c
141cda5cb
151419a3b
hexdd6d47

14511431 has 8 divisors (see below), whose sum is σ = 16032000. Its totient is φ = 13024440.

The previous prime is 14511407. The next prime is 14511433. The reversal of 14511431 is 13411541.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-14511431 is a prime.

It is a super-2 number, since 2×145114312 = 421163259335522, 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 (14511433) 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, 7481 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (2004000).

Almost surely, 214511431 is an apocalyptic number.

14511431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14511431 is a deficient number, since it is larger than the sum of its proper divisors (1520569).

14511431 is a wasteful number, since it uses less digits than its factorization.

14511431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16789.

The product of its digits is 240, while the sum is 20.

The square root of 14511431 is about 3809.3872210633. The cubic root of 14511431 is about 243.9140105039.

Adding to 14511431 its reverse (13411541), we get a palindrome (27922972).

It can be divided in two parts, 1451 and 1431, that added together give a palindrome (2882).

The spelling of 14511431 in words is "fourteen million, five hundred eleven thousand, four hundred thirty-one".

Divisors: 1 11 79 869 16699 183689 1319221 14511431