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80536835853 = 3243474427777
BaseRepresentation
bin100101100000001011…
…1101001011100001101
321200212202021011100100
41023000113221130031
52304414412221403
6100555331521313
75550530544465
oct1130027513415
9250782234310
1080536835853
1131178a42881
1213737759239
137796416476
143c8019cba5
1521656b12a3
hex12c05e970d

80536835853 has 24 divisors (see below), whose sum is σ = 121569072768. Its totient is φ = 51326779392.

The previous prime is 80536835851. The next prime is 80536835867. The reversal of 80536835853 is 35853863508.

80536835853 is a `hidden beast` number, since 8 + 0 + 53 + 6 + 8 + 3 + 585 + 3 = 666.

It is not a de Polignac number, because 80536835853 - 21 = 80536835851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80536835853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80536835851) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2195700 + ... + 2232077.

It is an arithmetic number, because the mean of its divisors is an integer number (5065378032).

Almost surely, 280536835853 is an apocalyptic number.

It is an amenable number.

80536835853 is a deficient number, since it is larger than the sum of its proper divisors (41032236915).

80536835853 is a wasteful number, since it uses less digits than its factorization.

80536835853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427873 (or 4427870 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 54.

The spelling of 80536835853 in words is "eighty billion, five hundred thirty-six million, eight hundred thirty-five thousand, eight hundred fifty-three".

Divisors: 1 3 9 43 47 129 141 387 423 2021 6063 18189 4427777 13283331 39849993 190394411 208105519 571183233 624316557 1713549699 1872949671 8948537317 26845611951 80536835853