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19027 = 53359
BaseRepresentation
bin100101001010011
3222002201
410221103
51102102
6224031
7106321
oct45123
928081
1019027
1113328
12b017
138878
146d11
155987
hex4a53

19027 has 4 divisors (see below), whose sum is σ = 19440. Its totient is φ = 18616.

The previous prime is 19013. The next prime is 19031. The reversal of 19027 is 72091.

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 19027 - 27 = 18899 is a prime.

It is a Duffinian number.

19027 is a modest number, since divided by 27 gives 19 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 18995 and 19013.

It is not an unprimeable number, because it can be changed into a prime (19037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127 + ... + 232.

It is an arithmetic number, because the mean of its divisors is an integer number (4860).

219027 is an apocalyptic number.

19027 is a deficient number, since it is larger than the sum of its proper divisors (413).

19027 is an equidigital number, since it uses as much as digits as its factorization.

19027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 19027 is about 137.9383920451. The cubic root of 19027 is about 26.6966503020.

The spelling of 19027 in words is "nineteen thousand, twenty-seven".

Divisors: 1 53 359 19027