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14444681 = 55725933
BaseRepresentation
bin110111000110…
…100010001001
31000011212101012
4313012202021
512144212211
61233333305
7233530526
oct67064211
930155335
1014444681
118176559
124a07235
132cb9964
141cc014d
151404d8b
hexdc6889

14444681 has 4 divisors (see below), whose sum is σ = 14471172. Its totient is φ = 14418192.

The previous prime is 14444671. The next prime is 14444701. The reversal of 14444681 is 18644441.

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 2131600 + 12313081 = 1460^2 + 3509^2 .

It is a cyclic number.

It is not a de Polignac number, because 14444681 - 222 = 10250377 is a prime.

It is a super-2 number, since 2×144446812 = 417297618383522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14444671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12410 + ... + 13523.

It is an arithmetic number, because the mean of its divisors is an integer number (3617793).

Almost surely, 214444681 is an apocalyptic number.

It is an amenable number.

14444681 is a deficient number, since it is larger than the sum of its proper divisors (26491).

14444681 is an equidigital number, since it uses as much as digits as its factorization.

14444681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26490.

The product of its digits is 12288, while the sum is 32.

The square root of 14444681 is about 3800.6158711451. The cubic root of 14444681 is about 243.5394485965.

The spelling of 14444681 in words is "fourteen million, four hundred forty-four thousand, six hundred eighty-one".

Divisors: 1 557 25933 14444681