Base | Representation |
---|---|
bin | 1000001101011… |
… | …00010000100000 |
3 | 11210120121021210 |
4 | 10012230100200 |
5 | 120112104013 |
6 | 10455550120 |
7 | 1464216534 |
oct | 406542040 |
9 | 153517253 |
10 | 68863008 |
11 | 35964885 |
12 | 1b08b340 |
13 | 11361156 |
14 | 9207bc4 |
15 | 60a3cc3 |
hex | 41ac420 |
68863008 has 24 divisors (see below), whose sum is σ = 180765648. Its totient is φ = 22954304.
The previous prime is 68863007. The next prime is 68863013. The reversal of 68863008 is 80036886.
It is a tau number, because it is divible by the number of its divisors (24).
It is a super-2 number, since 2×688630082 = 9484227741616128, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (68863007) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358566 + ... + 358757.
It is an arithmetic number, because the mean of its divisors is an integer number (7531902).
Almost surely, 268863008 is an apocalyptic number.
It is an amenable number.
68863008 is an abundant number, since it is smaller than the sum of its proper divisors (111902640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68863008 is a wasteful number, since it uses less digits than its factorization.
68863008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 717336 (or 717328 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 39.
The square root of 68863008 is about 8298.3738165980. The cubic root of 68863008 is about 409.8849726890.
The spelling of 68863008 in words is "sixty-eight million, eight hundred sixty-three thousand, eight".
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