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68256455465286 = 23211344729573057
BaseRepresentation
bin11111000010100001100011…
…10010000001100101000110
322221200020211201222101112200
433201100301302001211012
532421303210044342121
6401100325513055330
720243236411434144
oct1741206162014506
9287606751871480
1068256455465286
111a826444739170
1277a46849b7546
132c1172ca8b77a
1412bd8b6cb8594
157d5791437a26
hex3e1431c81946

68256455465286 has 24 divisors (see below), whose sum is σ = 161333440191144. Its totient is φ = 20683774383360.

The previous prime is 68256455465269. The next prime is 68256455465309.

68256455465286 is a `hidden beast` number, since 6 + 8 + 2 + 5 + 6 + 4 + 55 + 46 + 528 + 6 = 666.

68256455465286 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 172364786331 + ... + 172364786726.

It is an arithmetic number, because the mean of its divisors is an integer number (6722226674631).

Almost surely, 268256455465286 is an apocalyptic number.

68256455465286 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68256455465286 is an abundant number, since it is smaller than the sum of its proper divisors (93076984725858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68256455465286 is a wasteful number, since it uses less digits than its factorization.

68256455465286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344729573076 (or 344729573073 counting only the distinct ones).

The product of its digits is 3317760000, while the sum is 72.

The spelling of 68256455465286 in words is "sixty-eight trillion, two hundred fifty-six billion, four hundred fifty-five million, four hundred sixty-five thousand, two hundred eighty-six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 344729573057 689459146114 1034188719171 2068377438342 3102566157513 3792025303627 6205132315026 7584050607254 11376075910881 22752151821762 34128227732643 68256455465286