Base | Representation |
---|---|
bin | 11010001001111000… |
… | …000101110000000000 |
3 | 2200111011002111112000 |
4 | 122021320011300000 |
5 | 430003221022414 |
6 | 20522351504000 |
7 | 2012631304464 |
oct | 321170056000 |
9 | 80434074460 |
10 | 28082985984 |
11 | 10a01128029 |
12 | 5538b28000 |
13 | 2857185291 |
14 | 15059d24a4 |
15 | ae56a9b09 |
hex | 689e05c00 |
28082985984 has 352 divisors, whose sum is σ = 88872552000. Its totient is φ = 8729395200.
The previous prime is 28082985979. The next prime is 28082986013. The reversal of 28082985984 is 48958928082.
It is a super-3 number, since 3×280829859843 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70032184 + ... + 70032584.
Almost surely, 228082985984 is an apocalyptic number.
28082985984 is a gapful number since it is divisible by the number (24) 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 28082985984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44436276000).
28082985984 is an abundant number, since it is smaller than the sum of its proper divisors (60789566016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28082985984 is a wasteful number, since it uses less digits than its factorization.
28082985984 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 596 (or 572 counting only the distinct ones).
The product of its (nonzero) digits is 26542080, while the sum is 63.
The spelling of 28082985984 in words is "twenty-eight billion, eighty-two million, nine hundred eighty-five thousand, nine hundred eighty-four".
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