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12731445060147 = 32113472179170081
BaseRepresentation
bin1011100101000100010101…
…0000101010001000110011
31200002010002022000001202200
42321101011100222020303
53132042444413411042
643024424540114243
72452550035312152
oct271210520521063
950063068001680
1012731445060147
114069414912610
121517533235983
13714754719198
143202c320d599
151712928e7c4c
hexb944542a233

12731445060147 has 48 divisors (see below), whose sum is σ = 20128837322880. Its totient is φ = 7690214822400.

The previous prime is 12731445060109. The next prime is 12731445060211. The reversal of 12731445060147 is 74106054413721.

12731445060147 is a `hidden beast` number, since 1 + 2 + 7 + 3 + 1 + 445 + 0 + 60 + 147 = 666.

It is not a de Polignac number, because 12731445060147 - 214 = 12731445043763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12731445064147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74770147 + ... + 74940227.

It is an arithmetic number, because the mean of its divisors is an integer number (419350777560).

Almost surely, 212731445060147 is an apocalyptic number.

12731445060147 is a deficient number, since it is larger than the sum of its proper divisors (7397392262733).

12731445060147 is a wasteful number, since it uses less digits than its factorization.

12731445060147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172624 (or 172621 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

Adding to 12731445060147 its reverse (74106054413721), we get a palindrome (86837499473868).

The spelling of 12731445060147 in words is "twelve trillion, seven hundred thirty-one billion, four hundred forty-five million, sixty thousand, one hundred forty-seven".

Divisors: 1 3 9 11 33 99 347 1041 2179 3123 3817 6537 11451 19611 23969 34353 71907 170081 215721 510243 756113 1530729 1870891 2268339 5612673 6805017 8317243 16838019 24951729 59018107 74855187 177054321 370606499 531162963 649199177 1111819497 1947597531 3335458491 4076671489 5842792593 12230014467 36690043401 128600455153 385801365459 1157404096377 1414605006683 4243815020049 12731445060147