Base | Representation |
---|---|
bin | 11010011011010110… |
… | …000001010111011100 |
3 | 2201020120112102221101 |
4 | 122123112001113130 |
5 | 431103231420040 |
6 | 21011421042444 |
7 | 2023120255141 |
oct | 323326012734 |
9 | 81216472841 |
10 | 28376045020 |
11 | 110415a0684 |
12 | 55bb0b6424 |
13 | 28a2ac29ab |
14 | 15328ba3c8 |
15 | b1129709a |
hex | 69b5815dc |
28376045020 has 48 divisors (see below), whose sum is σ = 60793010208. Its totient is φ = 11122974720.
The previous prime is 28376045011. The next prime is 28376045111. The reversal of 28376045020 is 2054067382.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203760 + ... + 313480.
It is an arithmetic number, because the mean of its divisors is an integer number (1266521046).
Almost surely, 228376045020 is an apocalyptic number.
28376045020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28376045020 is an abundant number, since it is smaller than the sum of its proper divisors (32416965188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28376045020 is a wasteful number, since it uses less digits than its factorization.
28376045020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 109990 (or 109988 counting only the distinct ones).
The product of its (nonzero) digits is 80640, while the sum is 37.
The spelling of 28376045020 in words is "twenty-eight billion, three hundred seventy-six million, forty-five thousand, twenty".
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