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68150158847 = 465114652797
BaseRepresentation
bin111111011110000100…
…001110010111111111
320111220111112202212022
4333132010032113333
52104032420040342
651150250230355
74631552535521
oct773604162777
9214814482768
1068150158847
11269a1a96031
121125b4253bb
1365711265a4
143427087a11
151b8d00e9d2
hexfde10e5ff

68150158847 has 4 divisors (see below), whose sum is σ = 68164816296. Its totient is φ = 68135501400.

The previous prime is 68150158831. The next prime is 68150158927. The reversal of 68150158847 is 74885105186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68150158847 - 24 = 68150158831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68150358847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7321748 + ... + 7331049.

It is an arithmetic number, because the mean of its divisors is an integer number (17041204074).

Almost surely, 268150158847 is an apocalyptic number.

68150158847 is a deficient number, since it is larger than the sum of its proper divisors (14657449).

68150158847 is a wasteful number, since it uses less digits than its factorization.

68150158847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14657448.

The product of its (nonzero) digits is 2150400, while the sum is 53.

The spelling of 68150158847 in words is "sixty-eight billion, one hundred fifty million, one hundred fifty-eight thousand, eight hundred forty-seven".

Divisors: 1 4651 14652797 68150158847