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68843177874 = 2328346079771
BaseRepresentation
bin100000000011101011…
…1111000011110010010
320120200210120210020200
41000013113320132102
52111442323142444
651343124120030
74654666233252
oct1000727703622
9216623523220
1068843177874
11272181a7529
1211413536016
136651890313
143491125962
151bcdca3969
hex10075f8792

68843177874 has 24 divisors (see below), whose sum is σ = 150957333072. Its totient is φ = 22671246840.

The previous prime is 68843177867. The next prime is 68843177911. The reversal of 68843177874 is 47877134886.

68843177874 is a `hidden beast` number, since 68 + 8 + 431 + 7 + 78 + 74 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23038392 + ... + 23041379.

It is an arithmetic number, because the mean of its divisors is an integer number (6289888878).

Almost surely, 268843177874 is an apocalyptic number.

68843177874 is an abundant number, since it is smaller than the sum of its proper divisors (82114155198).

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

68843177874 is a wasteful number, since it uses less digits than its factorization.

68843177874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46079862 (or 46079859 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 63.

The spelling of 68843177874 in words is "sixty-eight billion, eight hundred forty-three million, one hundred seventy-seven thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 9 18 83 166 249 498 747 1494 46079771 92159542 138239313 276478626 414717939 829435878 3824620993 7649241986 11473862979 22947725958 34421588937 68843177874