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12530266 = 27979227
BaseRepresentation
bin101111110011…
…001001011010
3212120121021221
4233303021122
511201432031
61124322254
7211335250
oct57631132
925517257
1012530266
1170891a1
12424338a
132799478
1419425d0
151177a11
hexbf325a

12530266 has 16 divisors (see below), whose sum is σ = 21704256. Its totient is φ = 5314176.

The previous prime is 12530263. The next prime is 12530267. The reversal of 12530266 is 66203521.

It is a self number, because there is not a number n which added to its sum of digits gives 12530266.

It is not an unprimeable number, because it can be changed into a prime (12530263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3256 + ... + 5971.

It is an arithmetic number, because the mean of its divisors is an integer number (1356516).

Almost surely, 212530266 is an apocalyptic number.

12530266 is a deficient number, since it is larger than the sum of its proper divisors (9173990).

12530266 is an equidigital number, since it uses as much as digits as its factorization.

12530266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9333.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12530266 is about 3539.8115769063. The cubic root of 12530266 is about 232.2666004774.

Adding to 12530266 its reverse (66203521), we get a palindrome (78733787).

The spelling of 12530266 in words is "twelve million, five hundred thirty thousand, two hundred sixty-six".

Divisors: 1 2 7 14 97 194 679 1358 9227 18454 64589 129178 895019 1790038 6265133 12530266