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68056364871 = 3211836982141
BaseRepresentation
bin111111011000011110…
…011011011101000111
320111122222001112201100
4333120132123131013
52103334412133441
651133100031143
74626333361635
oct773036333507
9214588045640
1068056364871
1126954053250
1211233b324b3
1365578767b1
143418830355
151b84b83cb6
hexfd879b747

68056364871 has 24 divisors (see below), whose sum is σ = 107254452240. Its totient is φ = 41240851200.

The previous prime is 68056364863. The next prime is 68056364927. The reversal of 68056364871 is 17846365086.

68056364871 is a `hidden beast` number, since 6 + 8 + 0 + 563 + 6 + 4 + 8 + 71 = 666.

It is not a de Polignac number, because 68056364871 - 23 = 68056364863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68056364801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 787461 + ... + 869601.

It is an arithmetic number, because the mean of its divisors is an integer number (4468935510).

Almost surely, 268056364871 is an apocalyptic number.

68056364871 is a deficient number, since it is larger than the sum of its proper divisors (39198087369).

68056364871 is a wasteful number, since it uses less digits than its factorization.

68056364871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90527 (or 90524 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 68056364871 in words is "sixty-eight billion, fifty-six million, three hundred sixty-four thousand, eight hundred seventy-one".

Divisors: 1 3 9 11 33 99 8369 25107 75321 82141 92059 246423 276177 739269 828531 903551 2710653 8131959 687438029 2062314087 6186942261 7561818319 22685454957 68056364871