Base | Representation |
---|---|
bin | 111111111101100011… |
… | …001101010011010000 |
3 | 20120021022110220200000 |
4 | 333331203031103100 |
5 | 2111123130441413 |
6 | 51314515530000 |
7 | 4650625360254 |
oct | 777543152320 |
9 | 216238426600 |
10 | 68678374608 |
11 | 27143174388 |
12 | 113882b9900 |
13 | 66266aa4ac |
14 | 34772a6264 |
15 | 1bbe59d073 |
hex | ffd8cd4d0 |
68678374608 has 240 divisors, whose sum is σ = 202265970816. Its totient is φ = 22557242880.
The previous prime is 68678374591. The next prime is 68678374637. The reversal of 68678374608 is 80647387686.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126946818 + ... + 126947358.
Almost surely, 268678374608 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 68678374608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101132985408).
68678374608 is an abundant number, since it is smaller than the sum of its proper divisors (133587596208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68678374608 is a wasteful number, since it uses less digits than its factorization.
68678374608 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 984 (or 966 counting only the distinct ones).
The product of its (nonzero) digits is 65028096, while the sum is 63.
The spelling of 68678374608 in words is "sixty-eight billion, six hundred seventy-eight million, three hundred seventy-four thousand, six hundred eight".
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