Base | Representation |
---|---|
bin | 11010000110011000… |
… | …011100010110110000 |
3 | 2200100001202220111001 |
4 | 122012120130112300 |
5 | 424343213431240 |
6 | 20512455131344 |
7 | 2011320054400 |
oct | 320630342660 |
9 | 80301686431 |
10 | 28024358320 |
11 | 10981024212 |
12 | 5521373b54 |
13 | 2847c98b5a |
14 | 14dbcd0800 |
15 | ae047889a |
hex | 68661c5b0 |
28024358320 has 120 divisors (see below), whose sum is σ = 76349157984. Its totient is φ = 9538034688.
The previous prime is 28024358317. The next prime is 28024358381. The reversal of 28024358320 is 2385342082.
It is a self number, because there is not a number n which added to its sum of digits gives 28024358320.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 510949 + ... + 563131.
Almost surely, 228024358320 is an apocalyptic number.
28024358320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28024358320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38174578992).
28024358320 is an abundant number, since it is smaller than the sum of its proper divisors (48324799664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28024358320 is a wasteful number, since it uses less digits than its factorization.
28024358320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 52347 (or 52334 counting only the distinct ones).
The product of its (nonzero) digits is 92160, while the sum is 37.
The spelling of 28024358320 in words is "twenty-eight billion, twenty-four million, three hundred fifty-eight thousand, three hundred twenty".
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