Base | Representation |
---|---|
bin | 11011111100010011… |
… | …100110011110010010 |
3 | 2212102221120011222110 |
4 | 123330103212132102 |
5 | 442421204104110 |
6 | 21441052050150 |
7 | 2111332411443 |
oct | 337423463622 |
9 | 85387504873 |
10 | 30002800530 |
11 | 117a688711a |
12 | 5993a63956 |
13 | 2aa1b35a11 |
14 | 16489772ca |
15 | ba8ecda20 |
hex | 6fc4e6792 |
30002800530 has 16 divisors (see below), whose sum is σ = 72006721344. Its totient is φ = 8000746800.
The previous prime is 30002800519. The next prime is 30002800561. The reversal of 30002800530 is 3500820003.
It is a junction number, because it is equal to n+sod(n) for n = 30002800497 and 30002800506.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500046646 + ... + 500046705.
It is an arithmetic number, because the mean of its divisors is an integer number (4500420084).
Almost surely, 230002800530 is an apocalyptic number.
30002800530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30002800530 is an abundant number, since it is smaller than the sum of its proper divisors (42003920814).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30002800530 is a wasteful number, since it uses less digits than its factorization.
30002800530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1000093361.
The product of its (nonzero) digits is 720, while the sum is 21.
The spelling of 30002800530 in words is "thirty billion, two million, eight hundred thousand, five hundred thirty".
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