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19112 = 232389
BaseRepresentation
bin100101010101000
3222012212
410222220
51102422
6224252
7106502
oct45250
928185
1019112
11133a5
12b088
138912
146d72
1559e2
hex4aa8

19112 has 8 divisors (see below), whose sum is σ = 35850. Its totient is φ = 9552.

The previous prime is 19087. The next prime is 19121. The reversal of 19112 is 21191.

It can be written as a sum of positive squares in only one way, i.e., 17956 + 1156 = 134^2 + 34^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

19112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1187 + ... + 1202.

219112 is an apocalyptic number.

It is an amenable number.

19112 is a deficient number, since it is larger than the sum of its proper divisors (16738).

19112 is a wasteful number, since it uses less digits than its factorization.

19112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395 (or 2391 counting only the distinct ones).

The product of its digits is 18, while the sum is 14.

The square root of 19112 is about 138.2461572703. The cubic root of 19112 is about 26.7363455512.

It can be divided in two parts, 19 and 112, that added together give a palindrome (131).

The spelling of 19112 in words is "nineteen thousand, one hundred twelve".

Divisors: 1 2 4 8 2389 4778 9556 19112