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14005289 = 29482941
BaseRepresentation
bin110101011011…
…010000101001
3222100112122102
4311123100221
512041132124
61220103145
7230020514
oct65332051
928315572
1014005289
1179a6421
124834ab5
132b9496c
141c07d7b
151369aae
hexd5b429

14005289 has 4 divisors (see below), whose sum is σ = 14488260. Its totient is φ = 13522320.

The previous prime is 14005259. The next prime is 14005309. The reversal of 14005289 is 98250041.

14005289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7840000 + 6165289 = 2800^2 + 2483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14005289 is a prime.

It is a super-3 number, since 3×140052893 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 482941 = 14005289 / (1 + 4 + 0 + 0 + 5 + 2 + 8 + 9).

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (14005249) 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, 241442 + ... + 241499.

It is an arithmetic number, because the mean of its divisors is an integer number (3622065).

Almost surely, 214005289 is an apocalyptic number.

It is an amenable number.

14005289 is a deficient number, since it is larger than the sum of its proper divisors (482971).

14005289 is an equidigital number, since it uses as much as digits as its factorization.

14005289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482970.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 14005289 is about 3742.3640923887. The cubic root of 14005289 is about 241.0445731735.

The spelling of 14005289 in words is "fourteen million, five thousand, two hundred eighty-nine".

Divisors: 1 29 482941 14005289