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68441846705 = 5107291275829
BaseRepresentation
bin111111101111011100…
…111011001110110001
320112122211102001101022
4333233130323032301
52110132103043310
651235230145225
74642024045451
oct775734731661
9215584361338
1068441846705
1127031702481
1211321052215
1365b96a3b5b
143453ad5d61
151ba892aa55
hexfef73b3b1

68441846705 has 8 divisors (see below), whose sum is σ = 82137935400. Its totient is φ = 54748331136.

The previous prime is 68441846699. The next prime is 68441846731. The reversal of 68441846705 is 50764814486.

It can be written as a sum of positive squares in 4 ways, for example, as 22243932736 + 46197913969 = 149144^2 + 214937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68441846705 - 226 = 68374737841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584270 + ... + 691559.

It is an arithmetic number, because the mean of its divisors is an integer number (10267241925).

Almost surely, 268441846705 is an apocalyptic number.

It is an amenable number.

68441846705 is a deficient number, since it is larger than the sum of its proper divisors (13696088695).

68441846705 is a wasteful number, since it uses less digits than its factorization.

68441846705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286563.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 68441846705 in words is "sixty-eight billion, four hundred forty-one million, eight hundred forty-six thousand, seven hundred five".

Divisors: 1 5 10729 53645 1275829 6379145 13688369341 68441846705