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68866680082 = 2208929635563
BaseRepresentation
bin100000000100011000…
…1100010010100010010
320120202102210211012211
41000020301202110102
52112014332230312
651345323542334
74655403056644
oct1001061422422
9216672724184
1068866680082
112722a49a042
121141b38a9aa
1366566cb855
1434942c2894
151bd0d973a7
hex1008c62512

68866680082 has 16 divisors (see below), whose sum is σ = 103402933920. Its totient is φ = 34399056672.

The previous prime is 68866680073. The next prime is 68866680083. The reversal of 68866680082 is 28008666886.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68866679999 and 68866680026.

It is not an unprimeable number, because it can be changed into a prime (68866680083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12376633 + ... + 12382195.

It is an arithmetic number, because the mean of its divisors is an integer number (6462683370).

Almost surely, 268866680082 is an apocalyptic number.

68866680082 is a deficient number, since it is larger than the sum of its proper divisors (34536253838).

68866680082 is a wasteful number, since it uses less digits than its factorization.

68866680082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10617.

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 68866680082 in words is "sixty-eight billion, eight hundred sixty-six million, six hundred eighty thousand, eighty-two".

Divisors: 1 2 2089 2963 4178 5563 5926 11126 6189707 11621107 12379414 16483169 23242214 32966338 34433340041 68866680082