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12230525 = 522811741
BaseRepresentation
bin101110101001…
…111101111101
3212000101010102
4232221331331
511112334100
61114050445
7205646336
oct56517575
925011112
1012230525
1169a3a7a
124119a25
1326c2bc8
1418a528d
151118cd5
hexba9f7d

12230525 has 12 divisors (see below), whose sum is σ = 15228564. Its totient is φ = 9744000.

The previous prime is 12230521. The next prime is 12230527. The reversal of 12230525 is 52503221.

It can be written as a sum of positive squares in 6 ways, for example, as 2105401 + 10125124 = 1451^2 + 3182^2 .

It is not a de Polignac number, because 12230525 - 22 = 12230521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12230497 and 12230506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6155 + ... + 7895.

It is an arithmetic number, because the mean of its divisors is an integer number (1269047).

Almost surely, 212230525 is an apocalyptic number.

It is an amenable number.

12230525 is a deficient number, since it is larger than the sum of its proper divisors (2998039).

12230525 is a wasteful number, since it uses less digits than its factorization.

12230525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 12230525 is about 3497.2167505032. The cubic root of 12230525 is about 230.3995889287.

Adding to 12230525 its reverse (52503221), we get a palindrome (64733746).

The spelling of 12230525 in words is "twelve million, two hundred thirty thousand, five hundred twenty-five".

Divisors: 1 5 25 281 1405 1741 7025 8705 43525 489221 2446105 12230525