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1213325 = 5248533
BaseRepresentation
bin100101000001110001101
32021122100222
410220032031
5302311300
642001125
713212251
oct4501615
92248328
101213325
11759653
124a61a5
13336359
14238261
1518e785
hex12838d

1213325 has 6 divisors (see below), whose sum is σ = 1504554. Its totient is φ = 970640.

The previous prime is 1213301. The next prime is 1213327. The reversal of 1213325 is 5233121.

It can be written as a sum of positive squares in 3 ways, for example, as 249001 + 964324 = 499^2 + 982^2 .

It is not a de Polignac number, because 1213325 - 210 = 1212301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24242 + ... + 24291.

It is an arithmetic number, because the mean of its divisors is an integer number (250759).

21213325 is an apocalyptic number.

It is an amenable number.

1213325 is a deficient number, since it is larger than the sum of its proper divisors (291229).

1213325 is an equidigital number, since it uses as much as digits as its factorization.

1213325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48543 (or 48538 counting only the distinct ones).

The product of its digits is 180, while the sum is 17.

The square root of 1213325 is about 1101.5103267786. The cubic root of 1213325 is about 106.6577412237.

Adding to 1213325 its reverse (5233121), we get a palindrome (6446446).

The spelling of 1213325 in words is "one million, two hundred thirteen thousand, three hundred twenty-five".

Divisors: 1 5 25 48533 242665 1213325