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13052245 = 52610449
BaseRepresentation
bin110001110010…
…100101010101
3220120010022111
4301302211111
511320132440
61143431021
7215641123
oct61624525
926503274
1013052245
117405388
124455471
13291cc2b
141a3a913
15122c4ea
hexc72955

13052245 has 4 divisors (see below), whose sum is σ = 15662700. Its totient is φ = 10441792.

The previous prime is 13052191. The next prime is 13052261. The reversal of 13052245 is 54225031.

13052245 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3755844 + 9296401 = 1938^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 13052245 - 211 = 13050197 is a prime.

It is a super-2 number, since 2×130522452 = 340722199080050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305220 + ... + 1305229.

It is an arithmetic number, because the mean of its divisors is an integer number (3915675).

Almost surely, 213052245 is an apocalyptic number.

It is an amenable number.

13052245 is a deficient number, since it is larger than the sum of its proper divisors (2610455).

13052245 is an equidigital number, since it uses as much as digits as its factorization.

13052245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610454.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13052245 is about 3612.7890887789. The cubic root of 13052245 is about 235.4480361606.

Adding to 13052245 its reverse (54225031), we get a palindrome (67277276).

The spelling of 13052245 in words is "thirteen million, fifty-two thousand, two hundred forty-five".

Divisors: 1 5 2610449 13052245