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14427569 = 131109813
BaseRepresentation
bin110111000010…
…010110110001
31000010222220102
4313002112301
512143140234
61233122145
7233426612
oct67022661
930128812
1014427569
118164712
1249b9355
132cb1c30
141cb7c09
1513eec7e
hexdc25b1

14427569 has 4 divisors (see below), whose sum is σ = 15537396. Its totient is φ = 13317744.

The previous prime is 14427563. The next prime is 14427599. The reversal of 14427569 is 96572441.

14427569 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, and also an emirpimes, since its reverse is a distinct semiprime: 96572441 = 713796063.

It can be written as a sum of positive squares in 2 ways, for example, as 4264225 + 10163344 = 2065^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 14427569 - 220 = 13378993 is a prime.

It is a super-2 number, since 2×144275692 = 416309494499522, 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 (14427563) 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, 554894 + ... + 554919.

It is an arithmetic number, because the mean of its divisors is an integer number (3884349).

Almost surely, 214427569 is an apocalyptic number.

It is an amenable number.

14427569 is a deficient number, since it is larger than the sum of its proper divisors (1109827).

14427569 is a wasteful number, since it uses less digits than its factorization.

14427569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109826.

The product of its digits is 60480, while the sum is 38.

The square root of 14427569 is about 3798.3639899304. The cubic root of 14427569 is about 243.4432403153.

The spelling of 14427569 in words is "fourteen million, four hundred twenty-seven thousand, five hundred sixty-nine".

Divisors: 1 13 1109813 14427569