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82154 = 241077
BaseRepresentation
bin10100000011101010
311011200202
4110003222
510112104
61432202
7461342
oct240352
9134622
1082154
11567a6
123b662
132b517
1421d22
151951e
hex140ea

82154 has 4 divisors (see below), whose sum is σ = 123234. Its totient is φ = 41076.

The previous prime is 82153. The next prime is 82163. The reversal of 82154 is 45128.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51529 + 30625 = 227^2 + 175^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20537 + ... + 20540.

282154 is an apocalyptic number.

82154 is a deficient number, since it is larger than the sum of its proper divisors (41080).

82154 is a wasteful number, since it uses less digits than its factorization.

82154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41079.

The product of its digits is 320, while the sum is 20.

The square root of 82154 is about 286.6251907980. The cubic root of 82154 is about 43.4719950101.

The spelling of 82154 in words is "eighty-two thousand, one hundred fifty-four".

Divisors: 1 2 41077 82154