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12444275 = 52497771
BaseRepresentation
bin101111011110…
…001001110011
3212102020100002
4233132021303
511141204100
61122420215
7210526454
oct57361163
925366302
1012444275
11702a628
12420166b
13276929c
14191d12b
15115c2d5
hexbde273

12444275 has 6 divisors (see below), whose sum is σ = 15430932. Its totient is φ = 9955400.

The previous prime is 12444251. The next prime is 12444281. The reversal of 12444275 is 57244421.

It is not a de Polignac number, because 12444275 - 210 = 12443251 is a prime.

It is a super-3 number, since 3×124442753 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248861 + ... + 248910.

It is an arithmetic number, because the mean of its divisors is an integer number (2571822).

Almost surely, 212444275 is an apocalyptic number.

12444275 is a deficient number, since it is larger than the sum of its proper divisors (2986657).

12444275 is an equidigital number, since it uses as much as digits as its factorization.

12444275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497781 (or 497776 counting only the distinct ones).

The product of its digits is 8960, while the sum is 29.

The square root of 12444275 is about 3527.6443981785. The cubic root of 12444275 is about 231.7340578804.

Adding to 12444275 its reverse (57244421), we get a palindrome (69688696).

The spelling of 12444275 in words is "twelve million, four hundred forty-four thousand, two hundred seventy-five".

Divisors: 1 5 25 497771 2488855 12444275