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82210 = 258221
BaseRepresentation
bin10100000100100010
311011202211
4110010202
510112320
61432334
7461452
oct240442
9134684
1082210
1156847
123b6aa
132b55b
1421d62
151955a
hex14122

82210 has 8 divisors (see below), whose sum is σ = 147996. Its totient is φ = 32880.

The previous prime is 82207. The next prime is 82217. The reversal of 82210 is 1228.

It can be written as a sum of positive squares in 2 ways, for example, as 78961 + 3249 = 281^2 + 57^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (82217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4101 + ... + 4120.

282210 is an apocalyptic number.

82210 is a deficient number, since it is larger than the sum of its proper divisors (65786).

82210 is a wasteful number, since it uses less digits than its factorization.

82210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 82210 is about 286.7228627089. The cubic root of 82210 is about 43.4818702801.

Adding to 82210 its reverse (1228), we get a palindrome (83438).

It can be divided in two parts, 82 and 210, that added together give a palindrome (292).

The spelling of 82210 in words is "eighty-two thousand, two hundred ten".

Divisors: 1 2 5 10 8221 16442 41105 82210