Base | Representation |
---|---|
bin | 1000000110111… |
… | …10011110011000 |
3 | 11201222210001201 |
4 | 10003132132120 |
5 | 114403120440 |
6 | 10425523544 |
7 | 1454106250 |
oct | 403363630 |
9 | 151883051 |
10 | 68020120 |
11 | 35439583 |
12 | 1a9435b4 |
13 | 111275bc |
14 | 9068960 |
15 | 5e8919a |
hex | 40de798 |
68020120 has 64 divisors (see below), whose sum is σ = 175740480. Its totient is φ = 23210496.
The previous prime is 68020103. The next prime is 68020157. The reversal of 68020120 is 2102086.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77122 + ... + 77998.
It is an arithmetic number, because the mean of its divisors is an integer number (2745945).
Almost surely, 268020120 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 68020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87870240).
68020120 is an abundant number, since it is smaller than the sum of its proper divisors (107720360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68020120 is a wasteful number, since it uses less digits than its factorization.
68020120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1172 (or 1168 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 68020120 is about 8247.4311152019. The cubic root of 68020120 is about 408.2057625459.
The spelling of 68020120 in words is "sixty-eight million, twenty thousand, one hundred twenty".
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