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19030 = 2511173
BaseRepresentation
bin100101001010110
3222002211
410221112
51102110
6224034
7106324
oct45126
928084
1019030
1113330
12b01a
13887b
146d14
15598a
hex4a56

19030 has 16 divisors (see below), whose sum is σ = 37584. Its totient is φ = 6880.

The previous prime is 19013. The next prime is 19031. The reversal of 19030 is 3091.

It is a happy number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 19030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19031) by changing a digit.

19030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 24 + ... + 196.

It is an arithmetic number, because the mean of its divisors is an integer number (2349).

219030 is an apocalyptic number.

19030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19030 is a deficient number, since it is larger than the sum of its proper divisors (18554).

19030 is a wasteful number, since it uses less digits than its factorization.

19030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 19030 is about 137.9492660365. The cubic root of 19030 is about 26.6980533212.

The spelling of 19030 in words is "nineteen thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 173 346 865 1730 1903 3806 9515 19030