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12502433 = 113110641
BaseRepresentation
bin101111101100…
…010110100001
3212112012010002
4233230112201
511200034213
61123545345
7211161146
oct57542641
925465102
1012502433
11706a299
12422b255
1327898b8
1419363cd
15116e658
hexbec5a1

12502433 has 4 divisors (see below), whose sum is σ = 12613188. Its totient is φ = 12391680.

The previous prime is 12502403. The next prime is 12502439. The reversal of 12502433 is 33420521.

It is a happy number.

12502433 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33420521 = 171965913.

It can be written as a sum of positive squares in 2 ways, for example, as 2211169 + 10291264 = 1487^2 + 3208^2 .

It is a cyclic number.

It is not a de Polignac number, because 12502433 - 214 = 12486049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12502439) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55208 + ... + 55433.

It is an arithmetic number, because the mean of its divisors is an integer number (3153297).

Almost surely, 212502433 is an apocalyptic number.

It is an amenable number.

12502433 is a deficient number, since it is larger than the sum of its proper divisors (110755).

12502433 is a wasteful number, since it uses less digits than its factorization.

12502433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110754.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12502433 is about 3535.8779673512. The cubic root of 12502433 is about 232.0944980180.

Adding to 12502433 its reverse (33420521), we get a palindrome (45922954).

The spelling of 12502433 in words is "twelve million, five hundred two thousand, four hundred thirty-three".

Divisors: 1 113 110641 12502433