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682579009 = 71997157337
BaseRepresentation
bin101000101011110…
…101010001000001
31202120101121101001
4220223311101001
52344220012014
6151422012001
722625553160
oct5053652101
91676347331
10682579009
11320330792
12170717001
13ab54cb08
14669213d7
153edd0974
hex28af5441

682579009 has 32 divisors (see below), whose sum is σ = 837374720. Its totient is φ = 543449088.

The previous prime is 682578991. The next prime is 682579013. The reversal of 682579009 is 900975286.

It is not a de Polignac number, because 682579009 - 25 = 682578977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 682579009.

It is not an unprimeable number, because it can be changed into a prime (682079009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2025289 + ... + 2025625.

It is an arithmetic number, because the mean of its divisors is an integer number (26167960).

Almost surely, 2682579009 is an apocalyptic number.

It is an amenable number.

682579009 is a deficient number, since it is larger than the sum of its proper divisors (154795711).

682579009 is a wasteful number, since it uses less digits than its factorization.

682579009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 682579009 is about 26126.2130627460. The cubic root of 682579009 is about 880.4762440246.

The spelling of 682579009 in words is "six hundred eighty-two million, five hundred seventy-nine thousand, nine".

Divisors: 1 7 19 97 133 157 337 679 1099 1843 2359 2983 6403 12901 15229 20881 32689 44821 52909 106603 228823 289351 370363 621091 1005271 2025457 4347637 5132173 7036897 35925211 97511287 682579009