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82828261 = 792114969
BaseRepresentation
bin1001110111111…
…01101111100101
312202212010000101
410323331233211
5132201001021
612115144101
72024012545
oct473755745
9182763011
1082828261
114283310a
12238a5031
1314210809
14b001325
157411a91
hex4efdbe5

82828261 has 8 divisors (see below), whose sum is σ = 84291200. Its totient is φ = 81375840.

The previous prime is 82828253. The next prime is 82828289. The reversal of 82828261 is 16282828.

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

It is a cyclic number.

It is not a de Polignac number, because 82828261 - 23 = 82828253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82828261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82828231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14185 + ... + 19153.

It is an arithmetic number, because the mean of its divisors is an integer number (10536400).

Almost surely, 282828261 is an apocalyptic number.

It is an amenable number.

82828261 is a deficient number, since it is larger than the sum of its proper divisors (1462939).

82828261 is a wasteful number, since it uses less digits than its factorization.

82828261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259.

The product of its digits is 24576, while the sum is 37.

The square root of 82828261 is about 9101.0032963405. The cubic root of 82828261 is about 435.9060009040.

The spelling of 82828261 in words is "eighty-two million, eight hundred twenty-eight thousand, two hundred sixty-one".

Divisors: 1 79 211 4969 16669 392551 1048459 82828261