Base | Representation |
---|---|
bin | 11010000110110001… |
… | …000100010100101000 |
3 | 2200100111220212022001 |
4 | 122012301010110220 |
5 | 424401342012410 |
6 | 20513245340344 |
7 | 2011425661165 |
oct | 320661042450 |
9 | 80314825261 |
10 | 28030813480 |
11 | 1098473305a |
12 | 55235676b4 |
13 | 2849419087 |
14 | 14dcad106c |
15 | ae0d0133a |
hex | 686c44528 |
28030813480 has 32 divisors (see below), whose sum is σ = 63085263840. Its totient is φ = 11209492800.
The previous prime is 28030813423. The next prime is 28030813493. The reversal of 28030813480 is 8431803082.
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 7 ways as a sum of consecutive naturals, for example, 75547 + ... + 248533.
It is an arithmetic number, because the mean of its divisors is an integer number (1971414495).
Almost surely, 228030813480 is an apocalyptic number.
28030813480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28030813480 is an abundant number, since it is smaller than the sum of its proper divisors (35054450360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28030813480 is a wasteful number, since it uses less digits than its factorization.
28030813480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 177049 (or 177045 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 37.
The spelling of 28030813480 in words is "twenty-eight billion, thirty million, eight hundred thirteen thousand, four hundred eighty".
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