Base | Representation |
---|---|
bin | 11010001001100111… |
… | …111010111011100000 |
3 | 2200110212010011012221 |
4 | 122021213322323200 |
5 | 430001124403420 |
6 | 20522121000424 |
7 | 2012550262126 |
oct | 321147727340 |
9 | 80425104187 |
10 | 28078747360 |
11 | 109a97a2534 |
12 | 5537623114 |
13 | 285632cc11 |
14 | 150520b916 |
15 | ae511dcaa |
hex | 6899faee0 |
28078747360 has 48 divisors (see below), whose sum is σ = 66360815136. Its totient is φ = 11227304448.
The previous prime is 28078747351. The next prime is 28078747387. The reversal of 28078747360 is 6374787082.
It is a junction number, because it is equal to n+sod(n) for n = 28078747298 and 28078747307.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416149 + ... + 478891.
It is an arithmetic number, because the mean of its divisors is an integer number (1382516982).
Almost surely, 228078747360 is an apocalyptic number.
28078747360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28078747360 is an abundant number, since it is smaller than the sum of its proper divisors (38282067776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28078747360 is a wasteful number, since it uses less digits than its factorization.
28078747360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65555 (or 65547 counting only the distinct ones).
The product of its (nonzero) digits is 3161088, while the sum is 52.
The spelling of 28078747360 in words is "twenty-eight billion, seventy-eight million, seven hundred forty-seven thousand, three hundred sixty".
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