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80538473530 = 2515241528433
BaseRepresentation
bin100101100000001110…
…1111001010000111010
321200212212100100211001
41023000131321100322
52304420322123110
6100555430555214
75550550505164
oct1130035712072
9250785310731
1080538473530
1131179961229
1213738208b0a
13779686a9c8
143c804a7934
1521658d663a
hex12c077943a

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".

Divisors: 1 2 5 10 15241 30482 76205 152410 528433 1056866 2642165 5284330 8053847353 16107694706 40269236765 80538473530