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13453 = 111223
BaseRepresentation
bin11010010001101
3200110021
43102031
5412303
6142141
754136
oct32215
920407
1013453
11a120
127951
13617b
144c8d
153ebd
hex348d

13453 has 4 divisors (see below), whose sum is σ = 14688. Its totient is φ = 12220.

The previous prime is 13451. The next prime is 13457. The reversal of 13453 is 35431.

13453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35431 = 113221.

It is a cyclic number.

It is not a de Polignac number, because 13453 - 21 = 13451 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (3672).

213453 is an apocalyptic number.

It is an amenable number.

13453 is a deficient number, since it is larger than the sum of its proper divisors (1235).

13453 is a wasteful number, since it uses less digits than its factorization.

13453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234.

The product of its digits is 180, while the sum is 16.

The square root of 13453 is about 115.9870682447. The cubic root of 13453 is about 23.7833511131.

Adding to 13453 its reverse (35431), we get a palindrome (48884).

The spelling of 13453 in words is "thirteen thousand, four hundred fifty-three".

Divisors: 1 11 1223 13453