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82832228 = 22171218121
BaseRepresentation
bin1001110111111…
…10101101100100
312202212022110022
410323332231210
5132201112403
612115214312
72024030243
oct473765544
9182768408
1082832228
1142836096
12238a7398
131421256b
14b00295a
157412d38
hex4efeb64

82832228 has 12 divisors (see below), whose sum is σ = 153483372. Its totient is φ = 38979840.

The previous prime is 82832219. The next prime is 82832249. The reversal of 82832228 is 82223828.

It can be written as a sum of positive squares in 2 ways, for example, as 40347904 + 42484324 = 6352^2 + 6518^2 .

It is a super-2 number, since 2×828322282 = 13722355990887968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608993 + ... + 609128.

It is an arithmetic number, because the mean of its divisors is an integer number (12790281).

Almost surely, 282832228 is an apocalyptic number.

It is an amenable number.

82832228 is a deficient number, since it is larger than the sum of its proper divisors (70651144).

82832228 is a wasteful number, since it uses less digits than its factorization.

82832228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218142 (or 1218140 counting only the distinct ones).

The product of its digits is 24576, while the sum is 35.

The square root of 82832228 is about 9101.2212367352. The cubic root of 82832228 is about 435.9129599278.

Subtracting from 82832228 its reverse (82223828), we obtain a square (608400 = 7802).

The spelling of 82832228 in words is "eighty-two million, eight hundred thirty-two thousand, two hundred twenty-eight".

Divisors: 1 2 4 17 34 68 1218121 2436242 4872484 20708057 41416114 82832228