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68500704827 = 82198334433
BaseRepresentation
bin111111110010111101…
…011100111000111011
320112210221011100112202
4333302331130320323
52110242140023302
651245131500415
74643340245462
oct776275347073
9215727140482
1068500704827
1127061953455
12113388b770b
1365c8941149
14345b8579d9
151badba5202
hexff2f5ce3b

68500704827 has 4 divisors (see below), whose sum is σ = 68509047480. Its totient is φ = 68492362176.

The previous prime is 68500704817. The next prime is 68500704841. The reversal of 68500704827 is 72840700586.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68500704827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68500704817) 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, 4158998 + ... + 4175435.

It is an arithmetic number, because the mean of its divisors is an integer number (17127261870).

Almost surely, 268500704827 is an apocalyptic number.

68500704827 is a deficient number, since it is larger than the sum of its proper divisors (8342653).

68500704827 is an equidigital number, since it uses as much as digits as its factorization.

68500704827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342652.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 68500704827 in words is "sixty-eight billion, five hundred million, seven hundred four thousand, eight hundred twenty-seven".

Divisors: 1 8219 8334433 68500704827