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12272525 = 521513251
BaseRepresentation
bin101110110100…
…001110001101
3212002111201222
4232310032031
511120210100
61115013125
7206212646
oct56641615
925074658
1012272525
116a22591
12413a1a5
132709065
1418b66cd
151126485
hexbb438d

12272525 has 12 divisors (see below), whose sum is σ = 15323424. Its totient is φ = 9750000.

The previous prime is 12272483. The next prime is 12272549. The reversal of 12272525 is 52527221.

It is not a de Polignac number, because 12272525 - 28 = 12272269 is a prime.

It is a super-2 number, since 2×122725252 = 301229739751250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12272494 and 12272503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2150 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (1276952).

Almost surely, 212272525 is an apocalyptic number.

It is an amenable number.

12272525 is a deficient number, since it is larger than the sum of its proper divisors (3050899).

12272525 is a wasteful number, since it uses less digits than its factorization.

12272525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412 (or 3407 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 12272525 is about 3503.2163792721. The cubic root of 12272525 is about 230.6630207119.

Adding to 12272525 its reverse (52527221), we get a palindrome (64799746).

The spelling of 12272525 in words is "twelve million, two hundred seventy-two thousand, five hundred twenty-five".

Divisors: 1 5 25 151 755 3251 3775 16255 81275 490901 2454505 12272525