Base | Representation |
---|---|
bin | 11010000100111011… |
… | …101000110101001110 |
3 | 2200021100222220100021 |
4 | 122010323220311032 |
5 | 424321001430110 |
6 | 20510225452354 |
7 | 2010603220420 |
oct | 320473506516 |
9 | 80240886307 |
10 | 28000030030 |
11 | 10969317a95 |
12 | 55151a10ba |
13 | 2842c2b60b |
14 | 14d899a810 |
15 | add2702da |
hex | 684ee8d4e |
28000030030 has 64 divisors (see below), whose sum is σ = 63640028160. Its totient is φ = 8642456064.
The previous prime is 28000029983. The next prime is 28000030049. The reversal of 28000030030 is 3003000082.
It is a happy number.
28000030030 is a modest number, since divided by 30030 gives 28000 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 28000029986 and 28000030013.
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, 484140 + ... + 538879.
It is an arithmetic number, because the mean of its divisors is an integer number (994375440).
Almost surely, 228000030030 is an apocalyptic number.
28000030030 is an abundant number, since it is smaller than the sum of its proper divisors (35639998130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28000030030 is a wasteful number, since it uses less digits than its factorization.
28000030030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1023073.
The product of its (nonzero) digits is 144, while the sum is 16.
The spelling of 28000030030 in words is "twenty-eight billion, thirty thousand, thirty".
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