Base | Representation |
---|---|
bin | 1001010011010… |
… | …01110100011100 |
3 | 12102211020101011 |
4 | 10221221310130 |
5 | 124433344220 |
6 | 11424225004 |
7 | 1635141025 |
oct | 451516434 |
9 | 172736334 |
10 | 78028060 |
11 | 40054700 |
12 | 2216b164 |
13 | 1321c966 |
14 | a511c4c |
15 | 6cb465a |
hex | 4a69d1c |
78028060 has 72 divisors (see below), whose sum is σ = 189700560. Its totient is φ = 26864640.
The previous prime is 78028039. The next prime is 78028073. The reversal of 78028060 is 6082087.
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 23 ways as a sum of consecutive naturals, for example, 45132 + ... + 46828.
It is an arithmetic number, because the mean of its divisors is an integer number (2634730).
Almost surely, 278028060 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 78028060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94850280).
78028060 is an abundant number, since it is smaller than the sum of its proper divisors (111672500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78028060 is a wasteful number, since it uses less digits than its factorization.
78028060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1747 (or 1734 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 31.
The square root of 78028060 is about 8833.3493081617. The cubic root of 78028060 is about 427.3170974129.
The spelling of 78028060 in words is "seventy-eight million, twenty-eight thousand, sixty".
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