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19086 = 233181
BaseRepresentation
bin100101010001110
3222011220
410222032
51102321
6224210
7106434
oct45216
928156
1019086
1113381
12b066
1388c2
146d54
1559c6
hex4a8e

19086 has 8 divisors (see below), whose sum is σ = 38184. Its totient is φ = 6360.

The previous prime is 19081. The next prime is 19087. The reversal of 19086 is 68091.

It is a sphenic number, since it is the product of 3 distinct primes.

19086 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19081) 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, 1585 + ... + 1596.

It is an arithmetic number, because the mean of its divisors is an integer number (4773).

219086 is an apocalyptic number.

19086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19092).

19086 is a wasteful number, since it uses less digits than its factorization.

19086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 19086 is about 138.1520901036. The cubic root of 19086 is about 26.7242159913.

Adding to 19086 its sum of digits (24), we get a triangular number (19110 = T195).

It can be divided in two parts, 190 and 86, that added together give a triangular number (276 = T23).

The spelling of 19086 in words is "nineteen thousand, eighty-six".

Divisors: 1 2 3 6 3181 6362 9543 19086