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82818232 = 2372211271
BaseRepresentation
bin1001110111110…
…11010010111000
312202211121020221
410323323102320
5132200140412
612115025424
72023641400
oct473732270
9182747227
1082818232
1142826622
122389b274
1314209093
14addb800
15740db07
hex4efb4b8

82818232 has 24 divisors (see below), whose sum is σ = 180637560. Its totient is φ = 35493360.

The previous prime is 82818221. The next prime is 82818233. The reversal of 82818232 is 23281828.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82818233) 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, 105244 + ... + 106027.

It is an arithmetic number, because the mean of its divisors is an integer number (7526565).

Almost surely, 282818232 is an apocalyptic number.

It is an amenable number.

82818232 is an abundant number, since it is smaller than the sum of its proper divisors (97819328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82818232 is a wasteful number, since it uses less digits than its factorization.

82818232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211291 (or 211280 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 82818232 is about 9100.4522964521. The cubic root of 82818232 is about 435.8884067573. Note that the first 3 decimals are identical.

The spelling of 82818232 in words is "eighty-two million, eight hundred eighteen thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 211271 422542 845084 1478897 1690168 2957794 5915588 10352279 11831176 20704558 41409116 82818232