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13227425 = 52529097
BaseRepresentation
bin110010011101…
…010110100001
3220220000121122
4302131112201
511341234200
61151302025
7220300631
oct62352641
926800548
1013227425
117514a62
12451a915
1329818a3
141a846c1
151264385
hexc9d5a1

13227425 has 6 divisors (see below), whose sum is σ = 16402038. Its totient is φ = 10581920.

The previous prime is 13227419. The next prime is 13227427. The reversal of 13227425 is 52472231.

13227425 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 3 ways, for example, as 43264 + 13184161 = 208^2 + 3631^2 .

It is not a de Polignac number, because 13227425 - 210 = 13226401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13227394 and 13227403.

It is not an unprimeable number, because it can be changed into a prime (13227427) 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, 264524 + ... + 264573.

It is an arithmetic number, because the mean of its divisors is an integer number (2733673).

Almost surely, 213227425 is an apocalyptic number.

It is an amenable number.

13227425 is a deficient number, since it is larger than the sum of its proper divisors (3174613).

13227425 is an equidigital number, since it uses as much as digits as its factorization.

13227425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529107 (or 529102 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 13227425 is about 3636.9527079686. The cubic root of 13227425 is about 236.4967095150.

Adding to 13227425 its reverse (52472231), we get a palindrome (65699656).

The spelling of 13227425 in words is "thirteen million, two hundred twenty-seven thousand, four hundred twenty-five".

Divisors: 1 5 25 529097 2645485 13227425