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68956446888 = 23327136818347
BaseRepresentation
bin100000000111000011…
…1111110000010101000
320120222200201110010100
41000032013332002220
52112210322300023
651402251545400
74660543061520
oct1001607760250
9216880643110
1068956446888
112727613118a
121144545b260
13666c19b5c4
1434a21ac680
151bd8bc9c43
hex100e1fe0a8

68956446888 has 48 divisors (see below), whose sum is σ = 213436622880. Its totient is φ = 19701841824.

The previous prime is 68956446799. The next prime is 68956446941. The reversal of 68956446888 is 88864465986.

68956446888 is a `hidden beast` number, since 6 + 89 + 5 + 6 + 4 + 468 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68408670 + ... + 68409677.

It is an arithmetic number, because the mean of its divisors is an integer number (4446596310).

Almost surely, 268956446888 is an apocalyptic number.

It is an amenable number.

68956446888 is an abundant number, since it is smaller than the sum of its proper divisors (144480175992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68956446888 is a wasteful number, since it uses less digits than its factorization.

68956446888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136818366 (or 136818359 counting only the distinct ones).

The product of its digits is 637009920, while the sum is 72.

The spelling of 68956446888 in words is "sixty-eight billion, nine hundred fifty-six million, four hundred forty-six thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 136818347 273636694 410455041 547273388 820910082 957728429 1094546776 1231365123 1641820164 1915456858 2462730246 2873185287 3283640328 3830913716 4925460492 5746370574 7661827432 8619555861 9850920984 11492741148 17239111722 22985482296 34478223444 68956446888