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13040201 = 22735737
BaseRepresentation
bin110001101111…
…101001001001
3220112111210102
4301233221021
511314241301
61143255145
7215561036
oct61575111
926474712
1013040201
1173a7329
12444a4b5
1329175c5
141a3638d
151228b6b
hexc6fa49

13040201 has 4 divisors (see below), whose sum is σ = 13048212. Its totient is φ = 13032192.

The previous prime is 13040189. The next prime is 13040219. The reversal of 13040201 is 10204031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 8094025 = 2224^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 13040201 - 222 = 8845897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13040231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 5141.

It is an arithmetic number, because the mean of its divisors is an integer number (3262053).

Almost surely, 213040201 is an apocalyptic number.

It is an amenable number.

13040201 is a deficient number, since it is larger than the sum of its proper divisors (8011).

13040201 is an equidigital number, since it uses as much as digits as its factorization.

13040201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13040201 is about 3611.1218478473. The cubic root of 13040201 is about 235.3755937359.

Adding to 13040201 its reverse (10204031), we get a palindrome (23244232).

The spelling of 13040201 in words is "thirteen million, forty thousand, two hundred one".

Divisors: 1 2273 5737 13040201