Base | Representation |
---|---|
bin | 111111101010110000… |
… | …001100001000000000 |
3 | 20112110100001202112002 |
4 | 333222300030020000 |
5 | 2110001412314220 |
6 | 51223332323132 |
7 | 4640046000455 |
oct | 775260141000 |
9 | 215410052462 |
10 | 68363010560 |
11 | 26aa1156739 |
12 | 112ba7734a8 |
13 | 65a6260450 |
14 | 344745382c |
15 | 1ba1a56c75 |
hex | feac0c200 |
68363010560 has 160 divisors (see below), whose sum is σ = 176892396912. Its totient is φ = 25188433920.
The previous prime is 68363010559. The next prime is 68363010563. The reversal of 68363010560 is 6501036386.
It can be written as a sum of positive squares in 8 ways, for example, as 1186664704 + 67176345856 = 34448^2 + 259184^2 .
It is a tau number, because it is divible by the number of its divisors (160).
It is not an unprimeable number, because it can be changed into a prime (68363010563) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18002582 + ... + 18006378.
Almost surely, 268363010560 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68363010560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88446198456).
68363010560 is an abundant number, since it is smaller than the sum of its proper divisors (108529386352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68363010560 is a wasteful number, since it uses less digits than its factorization.
68363010560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4374 (or 4358 counting only the distinct ones).
The product of its (nonzero) digits is 77760, while the sum is 38.
The spelling of 68363010560 in words is "sixty-eight billion, three hundred sixty-three million, ten thousand, five hundred sixty".
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