Base | Representation |
---|---|
bin | 11010101010100000… |
… | …001001111111000000 |
3 | 2201220022001222111201 |
4 | 122222200021333000 |
5 | 432113333010000 |
6 | 21052543550544 |
7 | 2032326021214 |
oct | 325240117700 |
9 | 81808058451 |
10 | 28630360000 |
11 | 11162101250 |
12 | 56702bb454 |
13 | 29136b6428 |
14 | 155859a944 |
15 | b2877e96a |
hex | 6aa809fc0 |
28630360000 has 280 divisors, whose sum is σ = 79984396800. Its totient is φ = 10070400000.
The previous prime is 28630359971. The next prime is 28630360027. The reversal of 28630360000 is 6303682.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13638951 + ... + 13641049.
It is an arithmetic number, because the mean of its divisors is an integer number (285658560).
Almost surely, 228630360000 is an apocalyptic number.
28630360000 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 28630360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39992198400).
28630360000 is an abundant number, since it is smaller than the sum of its proper divisors (51354036800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28630360000 is a wasteful number, since it uses less digits than its factorization.
28630360000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2173 (or 2148 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 28.
Adding to 28630360000 its reverse (6303682), we get a palindrome (28636663682).
The spelling of 28630360000 in words is "twenty-eight billion, six hundred thirty million, three hundred sixty thousand".
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