Base | Representation |
---|---|
bin | 11010100101011010… |
… | …110010100110011010 |
3 | 2201200100120200002012 |
4 | 122211122302212122 |
5 | 431430014124133 |
6 | 21040255505522 |
7 | 2030242032620 |
oct | 324532624632 |
9 | 81610520065 |
10 | 28545067418 |
11 | 11118a4570a |
12 | 56478282a2 |
13 | 28cbb2204a |
14 | 154b117510 |
15 | b21032b48 |
hex | 6a56b299a |
28545067418 has 32 divisors (see below), whose sum is σ = 50143864320. Its totient is φ = 11934402480.
The previous prime is 28545067403. The next prime is 28545067423. The reversal of 28545067418 is 81476054582.
It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23696 + ... + 240107.
It is an arithmetic number, because the mean of its divisors is an integer number (1566995760).
Almost surely, 228545067418 is an apocalyptic number.
28545067418 is a deficient number, since it is larger than the sum of its proper divisors (21598796902).
28545067418 is a wasteful number, since it uses less digits than its factorization.
28545067418 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 264002.
The product of its (nonzero) digits is 2150400, while the sum is 50.
The spelling of 28545067418 in words is "twenty-eight billion, five hundred forty-five million, sixty-seven thousand, four hundred eighteen".
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