Search a number
-
+
12524417 is a prime number
BaseRepresentation
bin101111110001…
…101110000001
3212120022021022
4233301232001
511201240132
61124235225
7211312223
oct57615601
925508238
1012524417
117084864
12423bb15
1327968c9
141940413
151175e12
hexbf1b81

12524417 has 2 divisors, whose sum is σ = 12524418. Its totient is φ = 12524416.

The previous prime is 12524399. The next prime is 12524441. The reversal of 12524417 is 71442521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10784656 + 1739761 = 3284^2 + 1319^2 .

It is an emirp because it is prime and its reverse (71442521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12524417 - 210 = 12523393 is a prime.

It is a super-2 number, since 2×125244172 = 313722042379778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12524467) 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 as a sum of consecutive naturals, namely, 6262208 + 6262209.

It is an arithmetic number, because the mean of its divisors is an integer number (6262209).

Almost surely, 212524417 is an apocalyptic number.

It is an amenable number.

12524417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12524417 is an equidigital number, since it uses as much as digits as its factorization.

12524417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 26.

The square root of 12524417 is about 3538.9853065533. The cubic root of 12524417 is about 232.2304549616.

Adding to 12524417 its reverse (71442521), we get a palindrome (83966938).

It can be divided in two parts, 125 and 24417, that added together give a palindrome (24542).

The spelling of 12524417 in words is "twelve million, five hundred twenty-four thousand, four hundred seventeen".