Base | Representation |
---|---|
bin | 111111011110111100… |
… | …111010010010110000 |
3 | 20111221112111201212221 |
4 | 333132330322102300 |
5 | 2104100221100200 |
6 | 51151540530424 |
7 | 4632123046144 |
oct | 773674722260 |
9 | 214845451787 |
10 | 68165018800 |
11 | 269aa41558a |
12 | 112643b0a14 |
13 | 657422a268 |
14 | 3429035224 |
15 | 1b8e49791a |
hex | fdef3a4b0 |
68165018800 has 30 divisors (see below), whose sum is σ = 163766458628. Its totient is φ = 27266007360.
The previous prime is 68165018791. The next prime is 68165018837. The reversal of 68165018800 is 881056186.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85205874 + ... + 85206673.
Almost surely, 268165018800 is an apocalyptic number.
It is an amenable number.
68165018800 is an abundant number, since it is smaller than the sum of its proper divisors (95601439828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68165018800 is a wasteful number, since it uses less digits than its factorization.
68165018800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 170412565 (or 170412554 counting only the distinct ones).
The product of its (nonzero) digits is 92160, while the sum is 43.
The spelling of 68165018800 in words is "sixty-eight billion, one hundred sixty-five million, eighteen thousand, eight hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.215 sec. • engine limits •