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68828608427 = 412815974187
BaseRepresentation
bin100000000011010000…
…0010011011110101011
320120122210011120201112
41000012200103132223
52111430110432202
651341443540535
74654431342605
oct1000640233653
9216583146645
1068828608427
112720aa56267
121140a68a74b
13664b85b947
14348d212175
151bcc876b52
hex10068137ab

68828608427 has 8 divisors (see below), whose sum is σ = 70758282672. Its totient is φ = 66910883200.

The previous prime is 68828608399. The next prime is 68828608447. The reversal of 68828608427 is 72480682886.

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 68828608427 - 28 = 68828608171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68828608447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2975573 + ... + 2998614.

It is an arithmetic number, because the mean of its divisors is an integer number (8844785334).

Almost surely, 268828608427 is an apocalyptic number.

68828608427 is a deficient number, since it is larger than the sum of its proper divisors (1929674245).

68828608427 is a wasteful number, since it uses less digits than its factorization.

68828608427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974509.

The product of its (nonzero) digits is 16515072, while the sum is 59.

The spelling of 68828608427 in words is "sixty-eight billion, eight hundred twenty-eight million, six hundred eight thousand, four hundred twenty-seven".

Divisors: 1 41 281 11521 5974187 244941667 1678746547 68828608427