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13260505330061 = 112385128457791
BaseRepresentation
bin1100000011110111001110…
…1101011011000110001101
31201221200200102020110001022
43000331303231123012031
53214230003331030221
644111443025523525
72536016453356523
oct300756355330615
951850612213038
1013260505330061
114252826615a00
1215a1b844a35a5
137525ca334932
1433bb51b3c313
1517ee098cb4ab
hexc0f73b5b18d

13260505330061 has 12 divisors (see below), whose sum is σ = 14579382166272. Its totient is φ = 12051874065000.

The previous prime is 13260505330003. The next prime is 13260505330063. The reversal of 13260505330061 is 16003350506231.

It is not a de Polignac number, because 13260505330061 - 214 = 13260505313677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13260505330063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13762925 + ... + 14694866.

It is an arithmetic number, because the mean of its divisors is an integer number (1214948513856).

Almost surely, 213260505330061 is an apocalyptic number.

13260505330061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13260505330061 is a deficient number, since it is larger than the sum of its proper divisors (1318876836211).

13260505330061 is a wasteful number, since it uses less digits than its factorization.

13260505330061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28461664 (or 28461653 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 13260505330061 its reverse (16003350506231), we get a palindrome (29263855836292).

The spelling of 13260505330061 in words is "thirteen trillion, two hundred sixty billion, five hundred five million, three hundred thirty thousand, sixty-one".

Divisors: 1 11 121 3851 42361 465971 28457791 313035701 3443392711 109590953141 1205500484551 13260505330061