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13225589 = 131017353
BaseRepresentation
bin110010011100…
…111001110101
3220212221002122
4302130321311
511341204324
61151245325
7220262366
oct62347165
926787078
1013225589
117513643
124519845
132980ac0
141a83b6d
151263a5e
hexc9ce75

13225589 has 4 divisors (see below), whose sum is σ = 14242956. Its totient is φ = 12208224.

The previous prime is 13225573. The next prime is 13225591. The reversal of 13225589 is 98552231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98552231 = 409240959.

It can be written as a sum of positive squares in 2 ways, for example, as 6543364 + 6682225 = 2558^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 13225589 - 24 = 13225573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13225549) 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, 508664 + ... + 508689.

It is an arithmetic number, because the mean of its divisors is an integer number (3560739).

Almost surely, 213225589 is an apocalyptic number.

It is an amenable number.

13225589 is a deficient number, since it is larger than the sum of its proper divisors (1017367).

13225589 is a wasteful number, since it uses less digits than its factorization.

13225589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017366.

The product of its digits is 21600, while the sum is 35.

The square root of 13225589 is about 3636.7002900982. The cubic root of 13225589 is about 236.4857668952.

The spelling of 13225589 in words is "thirteen million, two hundred twenty-five thousand, five hundred eighty-nine".

Divisors: 1 13 1017353 13225589