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14427091 = 72061013
BaseRepresentation
bin110111000010…
…001111010011
31000010222020201
4313002033103
512143131331
61233120031
7233425330
oct67021723
930128221
1014427091
118164318
1249b9017
132cb1953
141cb7987
1513eea61
hexdc23d3

14427091 has 4 divisors (see below), whose sum is σ = 16488112. Its totient is φ = 12366072.

The previous prime is 14427089. The next prime is 14427103. The reversal of 14427091 is 19072441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19072441 = 36175273.

It is a cyclic number.

It is not a de Polignac number, because 14427091 - 21 = 14427089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14427071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030500 + ... + 1030513.

It is an arithmetic number, because the mean of its divisors is an integer number (4122028).

Almost surely, 214427091 is an apocalyptic number.

14427091 is a deficient number, since it is larger than the sum of its proper divisors (2061021).

14427091 is an equidigital number, since it uses as much as digits as its factorization.

14427091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061020.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 14427091 is about 3798.3010675827. The cubic root of 14427091 is about 243.4405517784.

The spelling of 14427091 in words is "fourteen million, four hundred twenty-seven thousand, ninety-one".

Divisors: 1 7 2061013 14427091