Base | Representation |
---|---|
bin | 111101010011000… |
… | …101101010100011 |
3 | 2122200010211221200 |
4 | 331103011222203 |
5 | 4101233222430 |
6 | 250014252243 |
7 | 34325242611 |
oct | 7523055243 |
9 | 2580124850 |
10 | 1028414115 |
11 | 488570823 |
12 | 2484b7083 |
13 | 1350a8381 |
14 | 9a8266b1 |
15 | 60445460 |
hex | 3d4c5aa3 |
1028414115 has 24 divisors (see below), whose sum is σ = 1785607200. Its totient is φ = 547557504.
The previous prime is 1028414077. The next prime is 1028414117. The reversal of 1028414115 is 5114148201.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-1028414115 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1028414117) 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, 7879 + ... + 46031.
It is an arithmetic number, because the mean of its divisors is an integer number (74400300).
Almost surely, 21028414115 is an apocalyptic number.
1028414115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1028414115 is a deficient number, since it is larger than the sum of its proper divisors (757193085).
1028414115 is a wasteful number, since it uses less digits than its factorization.
1028414115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38763 (or 38760 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 27.
The square root of 1028414115 is about 32068.8963795139. The cubic root of 1028414115 is about 1009.3830545866.
The spelling of 1028414115 in words is "one billion, twenty-eight million, four hundred fourteen thousand, one hundred fifteen".
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