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13245053 = 17376561
BaseRepresentation
bin110010100001…
…101001111101
3220220220210112
4302201221331
511342320203
61151515405
7220403213
oct62415175
926826715
1013245053
117527228
124528b65
132989913
141a8acb3
1512696d8
hexca1a7d

13245053 has 4 divisors (see below), whose sum is σ = 13321788. Its totient is φ = 13168320.

The previous prime is 13245049. The next prime is 13245077. The reversal of 13245053 is 35054231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35054231 = 231524097.

It can be written as a sum of positive squares in 2 ways, for example, as 9721924 + 3523129 = 3118^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245053 - 22 = 13245049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38108 + ... + 38453.

It is an arithmetic number, because the mean of its divisors is an integer number (3330447).

Almost surely, 213245053 is an apocalyptic number.

It is an amenable number.

13245053 is a deficient number, since it is larger than the sum of its proper divisors (76735).

13245053 is an equidigital number, since it uses as much as digits as its factorization.

13245053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76734.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13245053 is about 3639.3753584922. The cubic root of 13245053 is about 236.6017214730.

Adding to 13245053 its reverse (35054231), we get a palindrome (48299284).

The spelling of 13245053 in words is "thirteen million, two hundred forty-five thousand, fifty-three".

Divisors: 1 173 76561 13245053