Base | Representation |
---|---|
bin | 10011000100110111… |
… | …111001000000000000 |
3 | 1221212111002211200000 |
4 | 103010313321000000 |
5 | 313422102324122 |
6 | 13224254400000 |
7 | 1323404252112 |
oct | 230467710000 |
9 | 57774084600 |
10 | 20482854912 |
11 | 8761046073 |
12 | 3b77800000 |
13 | 1c15738bc0 |
14 | dc44973b2 |
15 | 7ed3490ac |
hex | 4c4df9000 |
20482854912 has 312 divisors, whose sum is σ = 66118276224. Its totient is φ = 6298435584.
The previous prime is 20482854863. The next prime is 20482854913. The reversal of 20482854912 is 21945828402.
20482854912 is a `hidden beast` number, since 2 + 0 + 4 + 82 + 85 + 491 + 2 = 666.
It is a tau number, because it is divible by the number of its divisors (312).
It is not an unprimeable number, because it can be changed into a prime (20482854913) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 12938473 + ... + 12940055.
It is an arithmetic number, because the mean of its divisors is an integer number (211917552).
Almost surely, 220482854912 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20482854912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33059138112).
20482854912 is an abundant number, since it is smaller than the sum of its proper divisors (45635421312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20482854912 is an equidigital number, since it uses as much as digits as its factorization.
20482854912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1635 (or 1601 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The spelling of 20482854912 in words is "twenty billion, four hundred eighty-two million, eight hundred fifty-four thousand, nine hundred twelve".
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