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13225493 = 41322573
BaseRepresentation
bin110010011100…
…111000010101
3220212220222002
4302130320111
511341203433
61151245045
7220262201
oct62347025
926786862
1013225493
117513566
124519785
132980a48
141a83b01
1512639e8
hexc9ce15

13225493 has 4 divisors (see below), whose sum is σ = 13548108. Its totient is φ = 12902880.

The previous prime is 13225453. The next prime is 13225517. The reversal of 13225493 is 39452231.

13225493 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1787569 + 11437924 = 1337^2 + 3382^2 .

It is a cyclic number.

It is not a de Polignac number, because 13225493 - 28 = 13225237 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 (13225403) 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, 161246 + ... + 161327.

It is an arithmetic number, because the mean of its divisors is an integer number (3387027).

Almost surely, 213225493 is an apocalyptic number.

It is an amenable number.

13225493 is a deficient number, since it is larger than the sum of its proper divisors (322615).

13225493 is an equidigital number, since it uses as much as digits as its factorization.

13225493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322614.

The product of its digits is 6480, while the sum is 29.

The square root of 13225493 is about 3636.6870912961. The cubic root of 13225493 is about 236.4851947042.

The spelling of 13225493 in words is "thirteen million, two hundred twenty-five thousand, four hundred ninety-three".

Divisors: 1 41 322573 13225493