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13531200241 = 132629739581
BaseRepresentation
bin11001001101000010…
…11011101011110001
31021221000100012012111
430212201123223301
5210202441401431
610114404325321
7656213206246
oct144641335361
937830305174
1013531200241
115814012019
1227576a3841
13137845c180
149251235cd
15542dce7b1
hex32685baf1

13531200241 has 8 divisors (see below), whose sum is σ = 14572984104. Its totient is φ = 12489548160.

The previous prime is 13531200223. The next prime is 13531200251. The reversal of 13531200241 is 14200213531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1004890000 + 12526310241 = 31700^2 + 111921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13531200241 - 25 = 13531200209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531200251) 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, 322071 + ... + 361651.

It is an arithmetic number, because the mean of its divisors is an integer number (1821623013).

Almost surely, 213531200241 is an apocalyptic number.

It is an amenable number.

13531200241 is a deficient number, since it is larger than the sum of its proper divisors (1041783863).

13531200241 is a wasteful number, since it uses less digits than its factorization.

13531200241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65891.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13531200241 its reverse (14200213531), we get a palindrome (27731413772).

The spelling of 13531200241 in words is "thirteen billion, five hundred thirty-one million, two hundred thousand, two hundred forty-one".

Divisors: 1 13 26297 39581 341861 514553 1040861557 13531200241