Base | Representation |
---|---|
bin | 1000001101011… |
… | …00111101111000 |
3 | 11210120202021100 |
4 | 10012230331320 |
5 | 120112202122 |
6 | 10500011400 |
7 | 1464231153 |
oct | 406547570 |
9 | 153522240 |
10 | 68865912 |
11 | 35966a85 |
12 | 1b090b60 |
13 | 1136257b |
14 | 9208c9a |
15 | 60a4aac |
hex | 41acf78 |
68865912 has 48 divisors (see below), whose sum is σ = 197486640. Its totient is φ = 21604608.
The previous prime is 68865851. The next prime is 68865913. The reversal of 68865912 is 21956886.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68865913) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26908 + ... + 29355.
It is an arithmetic number, because the mean of its divisors is an integer number (4114305).
Almost surely, 268865912 is an apocalyptic number.
It is an amenable number.
68865912 is an abundant number, since it is smaller than the sum of its proper divisors (128620728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68865912 is a wasteful number, since it uses less digits than its factorization.
68865912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56292 (or 56285 counting only the distinct ones).
The product of its digits is 207360, while the sum is 45.
The square root of 68865912 is about 8298.5487887943. The cubic root of 68865912 is about 409.8907343176.
The spelling of 68865912 in words is "sixty-eight million, eight hundred sixty-five thousand, nine hundred twelve".
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