Search a number
-
+
13246121 = 72270329
BaseRepresentation
bin110010100001…
…111010101001
3220220222021002
4302201322221
511342333441
61151524345
7220406300
oct62417251
926828232
1013246121
117528009
1245296b5
13298a255
141a8b437
151269b9b
hexca1ea9

13246121 has 6 divisors (see below), whose sum is σ = 15408810. Its totient is φ = 11353776.

The previous prime is 13246117. The next prime is 13246133. The reversal of 13246121 is 12164231.

13246121 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 only one way, i.e., 9486400 + 3759721 = 3080^2 + 1939^2 .

It is not a de Polignac number, because 13246121 - 22 = 13246117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13246093 and 13246102.

It is not an unprimeable number, because it can be changed into a prime (13246171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135116 + ... + 135213.

It is an arithmetic number, because the mean of its divisors is an integer number (2568135).

Almost surely, 213246121 is an apocalyptic number.

It is an amenable number.

13246121 is a deficient number, since it is larger than the sum of its proper divisors (2162689).

13246121 is an equidigital number, since it uses as much as digits as its factorization.

13246121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270343 (or 270336 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 13246121 is about 3639.5220840105. The cubic root of 13246121 is about 236.6080806736.

The spelling of 13246121 in words is "thirteen million, two hundred forty-six thousand, one hundred twenty-one".

Divisors: 1 7 49 270329 1892303 13246121