Base | Representation |
---|---|
bin | 1000001101011… |
… | …10010000000000 |
3 | 11210121000111000 |
4 | 10012232100000 |
5 | 120112334133 |
6 | 10500052000 |
7 | 1464252402 |
oct | 406562000 |
9 | 153530430 |
10 | 68871168 |
11 | 3596aa23 |
12 | 1b094000 |
13 | 11364a92 |
14 | 920ab72 |
15 | 60a6413 |
hex | 41ae400 |
68871168 has 176 divisors, whose sum is σ = 212232960. Its totient is φ = 22044672.
The previous prime is 68871167. The next prime is 68871169. The reversal of 68871168 is 86117886.
It is an interprime number because it is at equal distance from previous prime (68871167) and next prime (68871169).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68871167) 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, 1299430 + ... + 1299482.
Almost surely, 268871168 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 68871168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106116480).
68871168 is an abundant number, since it is smaller than the sum of its proper divisors (143361792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68871168 is a wasteful number, since it uses less digits than its factorization.
68871168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129 (or 105 counting only the distinct ones).
The product of its digits is 129024, while the sum is 45.
The square root of 68871168 is about 8298.8654646283. The cubic root of 68871168 is about 409.9011619773.
The spelling of 68871168 in words is "sixty-eight million, eight hundred seventy-one thousand, one hundred sixty-eight".
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