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14103831 = 372923159
BaseRepresentation
bin110101110011…
…010100010111
3222112112211010
4311303110113
512102310311
61222143303
7230611020
oct65632427
928475733
1014103831
117a63465
124881b33
132bca781
141c31c47
151388da6
hexd73517

14103831 has 16 divisors (see below), whose sum is σ = 22233600. Its totient is φ = 7781088.

The previous prime is 14103823. The next prime is 14103847. The reversal of 14103831 is 13830141.

It is not a de Polignac number, because 14103831 - 23 = 14103823 is a prime.

It is a super-2 number, since 2×141038312 = 397836097753122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 14103798 and 14103807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14103811) 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, 10971 + ... + 12188.

It is an arithmetic number, because the mean of its divisors is an integer number (1389600).

Almost surely, 214103831 is an apocalyptic number.

14103831 is a deficient number, since it is larger than the sum of its proper divisors (8129769).

14103831 is a wasteful number, since it uses less digits than its factorization.

14103831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23198.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 14103831 is about 3755.5067567507. The cubic root of 14103831 is about 241.6085868090.

Adding to 14103831 its reverse (13830141), we get a palindrome (27933972).

The spelling of 14103831 in words is "fourteen million, one hundred three thousand, eight hundred thirty-one".

Divisors: 1 3 7 21 29 87 203 609 23159 69477 162113 486339 671611 2014833 4701277 14103831