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13242431241 = 32131131001621
BaseRepresentation
bin11000101010100111…
…10111011100001001
31021011212222012121100
430111103313130021
5204110030244431
610030011132013
7646105544154
oct142523673411
937155865540
1013242431241
115686009656
122696a44009
131330694340
148d8a34c9b
1552788d4e6
hex3154f7709

13242431241 has 24 divisors (see below), whose sum is σ = 20781653256. Its totient is φ = 8077063680.

The previous prime is 13242431219. The next prime is 13242431249. The reversal of 13242431241 is 14213424231.

13242431241 is a `hidden beast` number, since 1 + 324 + 24 + 312 + 4 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2432462400 + 10809968841 = 49320^2 + 103971^2 .

It is not a de Polignac number, because 13242431241 - 218 = 13242169097 is a prime.

It is a super-2 number, since 2×132424312412 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13242431249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487590 + ... + 514031.

It is an arithmetic number, because the mean of its divisors is an integer number (865902219).

Almost surely, 213242431241 is an apocalyptic number.

It is an amenable number.

13242431241 is a deficient number, since it is larger than the sum of its proper divisors (7539222015).

13242431241 is a wasteful number, since it uses less digits than its factorization.

13242431241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001753 (or 1001750 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 13242431241 its reverse (14213424231), we get a palindrome (27455855472).

The spelling of 13242431241 in words is "thirteen billion, two hundred forty-two million, four hundred thirty-one thousand, two hundred forty-one".

Divisors: 1 3 9 13 39 113 117 339 1017 1469 4407 13221 1001621 3004863 9014589 13021073 39063219 113183173 117189657 339549519 1018648557 1471381249 4414143747 13242431241