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162089 = 192449
BaseRepresentation
bin100111100100101001
322020100022
4213210221
520141324
63250225
71243364
oct474451
9266308
10162089
11100864
1279975
1358a15
14430db
153305e
hex27929

162089 has 6 divisors (see below), whose sum is σ = 171450. Its totient is φ = 153216.

The previous prime is 162079. The next prime is 162091. The reversal of 162089 is 980261.

162089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 17689 = 380^2 + 133^2 .

It is not a de Polignac number, because 162089 - 216 = 96553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162059) 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, 137 + ... + 585.

It is an arithmetic number, because the mean of its divisors is an integer number (28575).

2162089 is an apocalyptic number.

162089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

162089 is a deficient number, since it is larger than the sum of its proper divisors (9361).

162089 is an equidigital number, since it uses as much as digits as its factorization.

162089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 162089 is about 402.6027819079. The cubic root of 162089 is about 54.5235989038.

The spelling of 162089 in words is "one hundred sixty-two thousand, eighty-nine".

Divisors: 1 19 361 449 8531 162089