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199159 = 792521
BaseRepresentation
bin110000100111110111
3101010012021
4300213313
522333114
64134011
71456432
oct604767
9333167
10199159
111266a4
1297307
136c85c
1452819
153e024
hex309f7

199159 has 4 divisors (see below), whose sum is σ = 201760. Its totient is φ = 196560.

The previous prime is 199153. The next prime is 199181. The reversal of 199159 is 951991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 951991 = 2693539.

It is a cyclic number.

It is not a de Polignac number, because 199159 - 23 = 199151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (50440).

2199159 is an apocalyptic number.

199159 is a deficient number, since it is larger than the sum of its proper divisors (2601).

199159 is an equidigital number, since it uses as much as digits as its factorization.

199159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600.

The product of its digits is 3645, while the sum is 34.

The square root of 199159 is about 446.2723383765. The cubic root of 199159 is about 58.3982696366.

The spelling of 199159 in words is "one hundred ninety-nine thousand, one hundred fifty-nine".

Divisors: 1 79 2521 199159