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19029 = 36343
BaseRepresentation
bin100101001010101
3222002210
410221111
51102104
6224033
7106323
oct45125
928083
1019029
111332a
12b019
13887a
146d13
155989
hex4a55

19029 has 4 divisors (see below), whose sum is σ = 25376. Its totient is φ = 12684.

The previous prime is 19013. The next prime is 19031. The reversal of 19029 is 92091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92091 = 330697.

It is not a de Polignac number, because 19029 - 24 = 19013 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18996 and 19014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19009) 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, 3169 + ... + 3174.

It is an arithmetic number, because the mean of its divisors is an integer number (6344).

219029 is an apocalyptic number.

It is an amenable number.

19029 is a deficient number, since it is larger than the sum of its proper divisors (6347).

19029 is an equidigital number, since it uses as much as digits as its factorization.

19029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 19029 is about 137.9456414679. The cubic root of 19029 is about 26.6975856645.

Adding to 19029 its product of nonzero digits (162), we get a palindrome (19191).

The spelling of 19029 in words is "nineteen thousand, twenty-nine".

Divisors: 1 3 6343 19029