Base | Representation |
---|---|
bin | 111101010001111… |
… | …010010110000111 |
3 | 2122122120011202110 |
4 | 331101322112013 |
5 | 4101143334412 |
6 | 250003512103 |
7 | 34322516304 |
oct | 7521722607 |
9 | 2578504673 |
10 | 1028105607 |
11 | 48837aa61 |
12 | 248388633 |
13 | 134ccab19 |
14 | 9a7860ab |
15 | 603d3d3c |
hex | 3d47a587 |
1028105607 has 32 divisors (see below), whose sum is σ = 1451520000. Its totient is φ = 646364160.
The previous prime is 1028105581. The next prime is 1028105609. The reversal of 1028105607 is 7065018201.
It is not a de Polignac number, because 1028105607 - 212 = 1028101511 is a prime.
It is a super-2 number, since 2×10281056072 = 2114002278289676898, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1028105609) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822519 + ... + 823767.
It is an arithmetic number, because the mean of its divisors is an integer number (45360000).
Almost surely, 21028105607 is an apocalyptic number.
1028105607 is a deficient number, since it is larger than the sum of its proper divisors (423414393).
1028105607 is a wasteful number, since it uses less digits than its factorization.
1028105607 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1503.
The product of its (nonzero) digits is 3360, while the sum is 30.
The square root of 1028105607 is about 32064.0859373848. The cubic root of 1028105607 is about 1009.2821114980.
The spelling of 1028105607 in words is "one billion, twenty-eight million, one hundred five thousand, six hundred seven".
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