Base | Representation |
---|---|
bin | 1110111001110010… |
… | …11001001001011110 |
3 | 202122121021220200110 |
4 | 13130321121021132 |
5 | 112341224000110 |
6 | 3401533110450 |
7 | 402162243462 |
oct | 73471311136 |
9 | 22577256613 |
10 | 8001000030 |
11 | 34363a0821 |
12 | 1673628426 |
13 | 9a680335a |
14 | 55c8884a2 |
15 | 31c646a20 |
hex | 1dce5925e |
8001000030 has 128 divisors (see below), whose sum is σ = 19935590400. Its totient is φ = 2054191104.
The previous prime is 8001000023. The next prime is 8001000047. The reversal of 8001000030 is 300001008.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21800907 + ... + 21801273.
It is an arithmetic number, because the mean of its divisors is an integer number (155746800).
Almost surely, 28001000030 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8001000030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9967795200).
8001000030 is an abundant number, since it is smaller than the sum of its proper divisors (11934590370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8001000030 is a wasteful number, since it uses less digits than its factorization.
8001000030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 658.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 8001000030 is about 89448.3092629481. The cubic root of 8001000030 is about 2000.0833323611.
Adding to 8001000030 its reverse (300001008), we get a palindrome (8301001038).
The spelling of 8001000030 in words is "eight billion, one million, thirty", and thus it is an aban number and an uban number.
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