Base | Representation |
---|---|
bin | 11100000001001111… |
… | …000111110101010010 |
3 | 2212122201012101111212 |
4 | 130001033013311102 |
5 | 443103342400110 |
6 | 21453204540122 |
7 | 2113355431343 |
oct | 340117076522 |
9 | 85581171455 |
10 | 30085512530 |
11 | 1183953a947 |
12 | 59b76b1642 |
13 | 2ab6005628 |
14 | 16559480ca |
15 | bb13bae05 |
hex | 7013c7d52 |
30085512530 has 16 divisors (see below), whose sum is σ = 54156043800. Its totient is φ = 12033733632.
The previous prime is 30085512529. The next prime is 30085512533. The reversal of 30085512530 is 3521558003.
It can be written as a sum of positive squares in 4 ways, for example, as 19851964609 + 10233547921 = 140897^2 + 101161^2 .
It is not an unprimeable number, because it can be changed into a prime (30085512533) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333746 + ... + 414194.
Almost surely, 230085512530 is an apocalyptic number.
30085512530 is a deficient number, since it is larger than the sum of its proper divisors (24070531270).
30085512530 is a wasteful number, since it uses less digits than its factorization.
30085512530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 117853.
The product of its (nonzero) digits is 18000, while the sum is 32.
The spelling of 30085512530 in words is "thirty billion, eighty-five million, five hundred twelve thousand, five hundred thirty".
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