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12426125 = 5399409
BaseRepresentation
bin101111011001…
…101110001101
3212101022102212
4233121232031
511140114000
61122200205
7210422525
oct57315615
925338385
1012426125
117017a28
1241b3065
132760c4a
141916685
151156c35
hexbd9b8d

12426125 has 8 divisors (see below), whose sum is σ = 15507960. Its totient is φ = 9940800.

The previous prime is 12426121. The next prime is 12426137. The reversal of 12426125 is 52162421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 218089 + 12208036 = 467^2 + 3494^2 .

It is not a de Polignac number, because 12426125 - 22 = 12426121 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12426125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426121) 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, 49580 + ... + 49829.

It is an arithmetic number, because the mean of its divisors is an integer number (1938495).

Almost surely, 212426125 is an apocalyptic number.

It is an amenable number.

12426125 is a deficient number, since it is larger than the sum of its proper divisors (3081835).

12426125 is an frugal number, since it uses more digits than its factorization.

12426125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99424 (or 99414 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 12426125 is about 3525.0709212724. The cubic root of 12426125 is about 231.6213415345.

Adding to 12426125 its reverse (52162421), we get a palindrome (64588546).

The spelling of 12426125 in words is "twelve million, four hundred twenty-six thousand, one hundred twenty-five".

Divisors: 1 5 25 125 99409 497045 2485225 12426125