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199439 = 53271
BaseRepresentation
bin110000101100001111
3101010120122
4300230033
522340224
64135155
71460312
oct605417
9333518
10199439
11126929
12974bb
136ca16
1452979
153e15e
hex30b0f

199439 has 6 divisors (see below), whose sum is σ = 206136. Its totient is φ = 192920.

The previous prime is 199429. The next prime is 199447. The reversal of 199439 is 934991.

199439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 199439 - 212 = 195343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199399 and 199408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2774 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (34356).

2199439 is an apocalyptic number.

199439 is a deficient number, since it is larger than the sum of its proper divisors (6697).

199439 is an frugal number, since it uses more digits than its factorization.

199439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 124 counting only the distinct ones).

The product of its digits is 8748, while the sum is 35.

The square root of 199439 is about 446.5859379783. The cubic root of 199439 is about 58.4256244277.

The spelling of 199439 in words is "one hundred ninety-nine thousand, four hundred thirty-nine".

Divisors: 1 53 71 2809 3763 199439