Base | Representation |
---|---|
bin | 100101100000001110… |
… | …1111001010000111010 |
3 | 21200212212100100211001 |
4 | 1023000131321100322 |
5 | 2304420322123110 |
6 | 100555430555214 |
7 | 5550550505164 |
oct | 1130035712072 |
9 | 250785310731 |
10 | 80538473530 |
11 | 31179961229 |
12 | 13738208b0a |
13 | 779686a9c8 |
14 | 3c804a7934 |
15 | 21658d663a |
hex | 12c077943a |
80538473530 has 16 divisors (see below), whose sum is σ = 144979038504. Its totient is φ = 32213214720.
The previous prime is 80538473501. The next prime is 80538473531. The reversal of 80538473530 is 3537483508.
It can be written as a sum of positive squares in 4 ways, for example, as 53055133569 + 27483339961 = 230337^2 + 165781^2 .
It is not an unprimeable number, because it can be changed into a prime (80538473531) 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, 111807 + ... + 416626.
Almost surely, 280538473530 is an apocalyptic number.
80538473530 is a deficient number, since it is larger than the sum of its proper divisors (64440564974).
80538473530 is a wasteful number, since it uses less digits than its factorization.
80538473530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 543681.
The product of its (nonzero) digits is 1209600, while the sum is 46.
The spelling of 80538473530 in words is "eighty billion, five hundred thirty-eight million, four hundred seventy-three thousand, five hundred thirty".
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