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82188676 = 22171208657
BaseRepresentation
bin1001110011000…
…01100110000100
312201122121200001
410321201212010
5132020014201
612053331044
72015410063
oct471414604
9181577601
1082188676
1142436629
1223636a84
131404866b
14acb61da
157337301
hex4e61984

82188676 has 12 divisors (see below), whose sum is σ = 152290908. Its totient is φ = 38676992.

The previous prime is 82188647. The next prime is 82188679. The reversal of 82188676 is 67688128.

It can be written as a sum of positive squares in 2 ways, for example, as 48664576 + 33524100 = 6976^2 + 5790^2 .

It is not an unprimeable number, because it can be changed into a prime (82188679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604261 + ... + 604396.

It is an arithmetic number, because the mean of its divisors is an integer number (12690909).

Almost surely, 282188676 is an apocalyptic number.

It is an amenable number.

82188676 is a deficient number, since it is larger than the sum of its proper divisors (70102232).

82188676 is a wasteful number, since it uses less digits than its factorization.

82188676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208678 (or 1208676 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 82188676 is about 9065.7970416285. The cubic root of 82188676 is about 434.7811044719.

The spelling of 82188676 in words is "eighty-two million, one hundred eighty-eight thousand, six hundred seventy-six".

Divisors: 1 2 4 17 34 68 1208657 2417314 4834628 20547169 41094338 82188676