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13057453 = 29450257
BaseRepresentation
bin110001110011…
…110110101101
3220120101110101
4301303312231
511320314303
61143511101
7215662243
oct61636655
926511411
1013057453
117409292
124458491
132922406
141a3c793
15122dd1d
hexc73dad

13057453 has 4 divisors (see below), whose sum is σ = 13507740. Its totient is φ = 12607168.

The previous prime is 13057439. The next prime is 13057463. The reversal of 13057453 is 35475031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35475031 = 109325459.

It can be written as a sum of positive squares in 2 ways, for example, as 11202409 + 1855044 = 3347^2 + 1362^2 .

It is a cyclic number.

It is not a de Polignac number, because 13057453 - 29 = 13056941 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 (13057403) 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, 225100 + ... + 225157.

It is an arithmetic number, because the mean of its divisors is an integer number (3376935).

Almost surely, 213057453 is an apocalyptic number.

It is an amenable number.

13057453 is a deficient number, since it is larger than the sum of its proper divisors (450287).

13057453 is an equidigital number, since it uses as much as digits as its factorization.

13057453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450286.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 13057453 is about 3613.5097896643. The cubic root of 13057453 is about 235.4793475127.

The spelling of 13057453 in words is "thirteen million, fifty-seven thousand, four hundred fifty-three".

Divisors: 1 29 450257 13057453