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213201132201 = 32313461164173
BaseRepresentation
bin1100011010001111000…
…1110001101010101001
3202101022100112200110200
43012203301301222221
511443113442212301
6241535424102413
721255215502621
oct3064361615251
9671270480420
10213201132201
1182466532212
12353a0764a09
13171492835c5
14a467445881
15582c3a5c86
hex31a3c71aa9

213201132201 has 24 divisors (see below), whose sum is σ = 309613119816. Its totient is φ = 141371792640.

The previous prime is 213201132181. The next prime is 213201132203. The reversal of 213201132201 is 102231102312.

213201132201 is a `hidden beast` number, since 21 + 320 + 1 + 1 + 322 + 0 + 1 = 666.

213201132201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11758149225 + 201442982976 = 108435^2 + 448824^2 .

It is not a de Polignac number, because 213201132201 - 27 = 213201132073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213201132203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1216551 + ... + 1380723.

It is an arithmetic number, because the mean of its divisors is an integer number (12900546659).

Almost surely, 2213201132201 is an apocalyptic number.

It is an amenable number.

213201132201 is a deficient number, since it is larger than the sum of its proper divisors (96411987615).

213201132201 is a wasteful number, since it uses less digits than its factorization.

213201132201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164953 (or 164950 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213201132201 its reverse (102231102312), we get a palindrome (315432234513).

The spelling of 213201132201 in words is "two hundred thirteen billion, two hundred one million, one hundred thirty-two thousand, two hundred one".

Divisors: 1 3 9 313 461 939 1383 2817 4149 144293 164173 432879 492519 1298637 1477557 51386149 75683753 154158447 227051259 462475341 681153777 23689014689 71067044067 213201132201