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68042924904 = 2332835121871
BaseRepresentation
bin111111010111101011…
…001010001101101000
320111122000202201112210
4333113223022031220
52103322442044104
651131500005120
74626111214233
oct772753121550
9214560681483
1068042924904
1126947503639
121122b5307a0
136554b4c256
143416b3241a
151b838cb989
hexfd7aca368

68042924904 has 16 divisors (see below), whose sum is σ = 170107312320. Its totient is φ = 22680974960.

The previous prime is 68042924903. The next prime is 68042924909. The reversal of 68042924904 is 40942924086.

It is not an unprimeable number, because it can be changed into a prime (68042924903) 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, 1417560912 + ... + 1417560959.

It is an arithmetic number, because the mean of its divisors is an integer number (10631707020).

Almost surely, 268042924904 is an apocalyptic number.

It is an amenable number.

68042924904 is an abundant number, since it is smaller than the sum of its proper divisors (102064387416).

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

68042924904 is a wasteful number, since it uses less digits than its factorization.

68042924904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835121880 (or 2835121876 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 68042924904 in words is "sixty-eight billion, forty-two million, nine hundred twenty-four thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 24 2835121871 5670243742 8505365613 11340487484 17010731226 22680974968 34021462452 68042924904