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14490431 = 25756383
BaseRepresentation
bin110111010001…
…101100111111
31000021012010122
4313101230333
512202143211
61234325155
7234111104
oct67215477
930235118
1014490431
1181a796a
124a297bb
133004727
141cd2aab
1514136db
hexdd1b3f

14490431 has 4 divisors (see below), whose sum is σ = 14547072. Its totient is φ = 14433792.

The previous prime is 14490419. The next prime is 14490439. The reversal of 14490431 is 13409441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14490431 - 210 = 14489407 is a prime.

It is a super-2 number, since 2×144904312 = 419945181131522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14490431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14490439) 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, 27935 + ... + 28448.

It is an arithmetic number, because the mean of its divisors is an integer number (3636768).

Almost surely, 214490431 is an apocalyptic number.

14490431 is a deficient number, since it is larger than the sum of its proper divisors (56641).

14490431 is an equidigital number, since it uses as much as digits as its factorization.

14490431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56640.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 14490431 is about 3806.6298743114. The cubic root of 14490431 is about 243.7962948666.

Adding to 14490431 its reverse (13409441), we get a palindrome (27899872).

The spelling of 14490431 in words is "fourteen million, four hundred ninety thousand, four hundred thirty-one".

Divisors: 1 257 56383 14490431