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19066 = 29533
BaseRepresentation
bin100101001111010
3222011011
410221322
51102231
6224134
7106405
oct45172
928134
1019066
1113363
12b04a
1388a8
146d3c
1559b1
hex4a7a

19066 has 4 divisors (see below), whose sum is σ = 28602. Its totient is φ = 9532.

The previous prime is 19051. The next prime is 19069. The reversal of 19066 is 66091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18225 + 841 = 135^2 + 29^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (19069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4765 + ... + 4768.

219066 is an apocalyptic number.

19066 is a deficient number, since it is larger than the sum of its proper divisors (9536).

19066 is an equidigital number, since it uses as much as digits as its factorization.

19066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9535.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 19066 is about 138.0796871375. The cubic root of 19066 is about 26.7148780625.

Subtracting from 19066 its sum of digits (22), we obtain a square (19044 = 1382).

It can be divided in two parts, 190 and 66, that added together give a 8-th power (256 = 28).

The spelling of 19066 in words is "nineteen thousand, sixty-six".

Divisors: 1 2 9533 19066