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19108 = 2217281
BaseRepresentation
bin100101010100100
3222012201
410222210
51102413
6224244
7106465
oct45244
928181
1019108
11133a1
12b084
13890b
146d6c
1559dd
hex4aa4

19108 has 12 divisors (see below), whose sum is σ = 35532. Its totient is φ = 8960.

The previous prime is 19087. The next prime is 19121. The reversal of 19108 is 80191.

19108 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 13924 + 5184 = 118^2 + 72^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73 + ... + 208.

It is an arithmetic number, because the mean of its divisors is an integer number (2961).

219108 is an apocalyptic number.

It is an amenable number.

19108 is a deficient number, since it is larger than the sum of its proper divisors (16424).

19108 is a wasteful number, since it uses less digits than its factorization.

19108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 19108 is about 138.2316895650. The cubic root of 19108 is about 26.7344801814.

Adding to 19108 its reverse (80191), we get a palindrome (99299).

The spelling of 19108 in words is "nineteen thousand, one hundred eight".

Divisors: 1 2 4 17 34 68 281 562 1124 4777 9554 19108