Base | Representation |
---|---|
bin | 111111101011100001… |
… | …001000101011100011 |
3 | 20112111020012122021100 |
4 | 333223201020223203 |
5 | 2110013203412012 |
6 | 51224511325443 |
7 | 4640263030461 |
oct | 775341105343 |
9 | 215436178240 |
10 | 68375841507 |
11 | 26aa841a826 |
12 | 11302b20883 |
13 | 65a8b0371c |
14 | 3449033831 |
15 | 1ba2c3d8dc |
hex | feb848ae3 |
68375841507 has 24 divisors (see below), whose sum is σ = 101083110128. Its totient is φ = 44514489600.
The previous prime is 68375841497. The next prime is 68375841511. The reversal of 68375841507 is 70514857386.
It is a happy number.
68375841507 is a `hidden beast` number, since 6 + 8 + 3 + 7 + 584 + 1 + 50 + 7 = 666.
It is not a de Polignac number, because 68375841507 - 210 = 68375840483 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68375831507) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2167407 + ... + 2198727.
Almost surely, 268375841507 is an apocalyptic number.
68375841507 is a deficient number, since it is larger than the sum of its proper divisors (32707268621).
68375841507 is a wasteful number, since it uses less digits than its factorization.
68375841507 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37011 (or 37008 counting only the distinct ones).
The product of its (nonzero) digits is 5644800, while the sum is 54.
The spelling of 68375841507 in words is "sixty-eight billion, three hundred seventy-five million, eight hundred forty-one thousand, five hundred seven".
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