Search a number
-
+
13113361 = 17973259
BaseRepresentation
bin110010000001…
…100000010001
3220200020011001
4302001200101
511324111421
61145022001
7216314242
oct62014021
926606131
1013113361
117447298
124484901
1329419b1
141a54cc9
151240691
hexc81811

13113361 has 4 divisors (see below), whose sum is σ = 13186800. Its totient is φ = 13039924.

The previous prime is 13113337. The next prime is 13113377. The reversal of 13113361 is 16331131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13113361 - 29 = 13112849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13113301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36451 + ... + 36808.

It is an arithmetic number, because the mean of its divisors is an integer number (3296700).

Almost surely, 213113361 is an apocalyptic number.

It is an amenable number.

13113361 is a deficient number, since it is larger than the sum of its proper divisors (73439).

13113361 is an equidigital number, since it uses as much as digits as its factorization.

13113361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73438.

The product of its digits is 162, while the sum is 19.

The square root of 13113361 is about 3621.2374956636. The cubic root of 13113361 is about 235.8149523757.

Adding to 13113361 its reverse (16331131), we get a palindrome (29444492).

The spelling of 13113361 in words is "thirteen million, one hundred thirteen thousand, three hundred sixty-one".

Divisors: 1 179 73259 13113361