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82112838884 = 221031311521397
BaseRepresentation
bin100110001111001001…
…1100111110011100100
321211221120210102001222
41030132103213303210
52321131341321014
6101415551035512
75634555420506
oct1143623476344
9254846712058
1082112838884
113190761421a
1213ab750bb98
137987a9973b
143d8d607d76
152208c2008e
hex131e4e7ce4

82112838884 has 24 divisors (see below), whose sum is σ = 146200262208. Its totient is φ = 40347421920.

The previous prime is 82112838827. The next prime is 82112838889. The reversal of 82112838884 is 48883821128.

It is not an unprimeable number, because it can be changed into a prime (82112838889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706727 + ... + 814670.

It is an arithmetic number, because the mean of its divisors is an integer number (6091677592).

Almost surely, 282112838884 is an apocalyptic number.

It is an amenable number.

82112838884 is a deficient number, since it is larger than the sum of its proper divisors (64087423324).

82112838884 is a wasteful number, since it uses less digits than its factorization.

82112838884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521635 (or 1521633 counting only the distinct ones).

The product of its digits is 1572864, while the sum is 53.

The spelling of 82112838884 in words is "eighty-two billion, one hundred twelve million, eight hundred thirty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 103 131 206 262 412 524 13493 26986 53972 1521397 3042794 6085588 156703891 199303007 313407782 398606014 626815564 797212028 20528209721 41056419442 82112838884