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83021042918 = 21113727545137
BaseRepresentation
bin100110101010001110…
…0001001010011100110
321221021212201221210102
41031110130021103212
52330011341333133
6102050033024102
75666224135622
oct1152434112346
9257255657712
1083021042918
113223323a370
121410b6b5032
137aa0ca6388
14403809c182
15225d81c7e8
hex13547094e6

83021042918 has 16 divisors (see below), whose sum is σ = 136844245584. Its totient is φ = 37461384960.

The previous prime is 83021042917. The next prime is 83021042941. The reversal of 83021042918 is 81924012038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83021042917) 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, 13769555 + ... + 13775582.

It is an arithmetic number, because the mean of its divisors is an integer number (8552765349).

Almost surely, 283021042918 is an apocalyptic number.

83021042918 is a deficient number, since it is larger than the sum of its proper divisors (53823202666).

83021042918 is a wasteful number, since it uses less digits than its factorization.

83021042918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27545287.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 83021042918 in words is "eighty-three billion, twenty-one million, forty-two thousand, nine hundred eighteen".

Divisors: 1 2 11 22 137 274 1507 3014 27545137 55090274 302996507 605993014 3773683769 7547367538 41510521459 83021042918