Base | Representation |
---|---|
bin | 1000001000000… |
… | …00101011011110 |
3 | 11202020220020200 |
4 | 10010000223132 |
5 | 114422111342 |
6 | 10432524330 |
7 | 1455231564 |
oct | 404005336 |
9 | 152226220 |
10 | 68160222 |
11 | 35524869 |
12 | 1a9b06a6 |
13 | 111762c0 |
14 | 90a3a34 |
15 | 5eb594c |
hex | 4100ade |
68160222 has 48 divisors (see below), whose sum is σ = 161768880. Its totient is φ = 20612736.
The previous prime is 68160221. The next prime is 68160223. The reversal of 68160222 is 22206186.
It is an interprime number because it is at equal distance from previous prime (68160221) and next prime (68160223).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68160221) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11338 + ... + 16274.
It is an arithmetic number, because the mean of its divisors is an integer number (3370185).
Almost surely, 268160222 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68160222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80884440).
68160222 is an abundant number, since it is smaller than the sum of its proper divisors (93608658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68160222 is a wasteful number, since it uses less digits than its factorization.
68160222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5017 (or 5014 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 68160222 is about 8255.9204211281. The cubic root of 68160222 is about 408.4858327334.
The spelling of 68160222 in words is "sixty-eight million, one hundred sixty thousand, two hundred twenty-two".
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