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12013325 = 52480533
BaseRepresentation
bin101101110100…
…111100001101
3211121100011222
4231310330031
511033411300
61105253125
7204053162
oct55647415
924540158
1012013325
116865875
1240341a5
13264809c
14184a069
1510c4785
hexb74f0d

12013325 has 6 divisors (see below), whose sum is σ = 14896554. Its totient is φ = 9610640.

The previous prime is 12013321. The next prime is 12013333. The reversal of 12013325 is 52331021.

It can be written as a sum of positive squares in 3 ways, for example, as 169 + 12013156 = 13^2 + 3466^2 .

It is not a de Polignac number, because 12013325 - 22 = 12013321 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 (12013321) 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, 240242 + ... + 240291.

It is an arithmetic number, because the mean of its divisors is an integer number (2482759).

Almost surely, 212013325 is an apocalyptic number.

It is an amenable number.

12013325 is a deficient number, since it is larger than the sum of its proper divisors (2883229).

12013325 is an equidigital number, since it uses as much as digits as its factorization.

12013325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480543 (or 480538 counting only the distinct ones).

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

The square root of 12013325 is about 3466.0243796027. The cubic root of 12013325 is about 229.0275578158.

Adding to 12013325 its reverse (52331021), we get a palindrome (64344346).

The spelling of 12013325 in words is "twelve million, thirteen thousand, three hundred twenty-five".

Divisors: 1 5 25 480533 2402665 12013325