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83189 = 412029
BaseRepresentation
bin10100010011110101
311020010002
4110103311
510130224
61441045
7464351
oct242365
9136102
1083189
1157557
1240185
132bb32
1422461
15199ae
hex144f5

83189 has 4 divisors (see below), whose sum is σ = 85260. Its totient is φ = 81120.

The previous prime is 83177. The next prime is 83203. The reversal of 83189 is 98138.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98138 = 249069.

It can be written as a sum of positive squares in 2 ways, for example, as 47089 + 36100 = 217^2 + 190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83189 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (21315).

283189 is an apocalyptic number.

It is an amenable number.

83189 is a deficient number, since it is larger than the sum of its proper divisors (2071).

83189 is a wasteful number, since it uses less digits than its factorization.

83189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070.

The product of its digits is 1728, while the sum is 29.

The square root of 83189 is about 288.4250335876. The cubic root of 83189 is about 43.6537913079.

It can be divided in two parts, 83 and 189, that added together give a palindrome (272).

The spelling of 83189 in words is "eighty-three thousand, one hundred eighty-nine".

Divisors: 1 41 2029 83189