Search a number
13403201 = 71914743
BaseRepresentation
bin110011001000…
…010001000001
3221012221201212
4303020101001
511412400301
61155135505
7221632250
oct63102101
927187655
1013403201
117625029
1245a4595
132a138b6
141acc797
15129b4bb
hexcc8441

13403201 has 4 divisors (see below), whose sum is σ = 15317952. Its totient is φ = 11488452.

The previous prime is 13403197. The next prime is 13403209. The reversal of 13403201 is 10230431.

Adding to 13403201 its reverse (10230431), we get a palindrome (23633632).

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 13403201 - 22 = 13403197 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13403209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957365 + ... + 957378.

It is an arithmetic number, because the mean of its divisors is an integer number (3829488).

Almost surely, 213403201 is an apocalyptic number.

It is an amenable number.

13403201 is a deficient number, since it is larger than the sum of its proper divisors (1914751).

13403201 is an equidigital number, since it uses as much as digits as its factorization.

13403201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914750.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13403201 is about 3661.0382407181. The cubic root of 13403201 is about 237.5396853351.

The spelling of 13403201 in words is "thirteen million, four hundred three thousand, two hundred one".

Divisors: 1 7 1914743 13403201