Search a number
-
+
12618341 is a prime number
BaseRepresentation
bin110000001000…
…101001100101
3212202002002222
4300020221211
511212241331
61130242125
7212153111
oct60105145
925662088
1012618341
11713938a
124286345
1327ca598
141966741
151193b7b
hexc08a65

12618341 has 2 divisors, whose sum is σ = 12618342. Its totient is φ = 12618340.

The previous prime is 12618323. The next prime is 12618343. The reversal of 12618341 is 14381621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12397441 + 220900 = 3521^2 + 470^2 .

It is an emirp because it is prime and its reverse (14381621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12618341 is a prime.

Together with 12618343, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12618341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12618343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309170 + 6309171.

It is an arithmetic number, because the mean of its divisors is an integer number (6309171).

Almost surely, 212618341 is an apocalyptic number.

It is an amenable number.

12618341 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618341 is an equidigital number, since it uses as much as digits as its factorization.

12618341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 12618341 is about 3552.2304260844. The cubic root of 12618341 is about 232.8095295418.

Adding to 12618341 its reverse (14381621), we get a palindrome (26999962).

The spelling of 12618341 in words is "twelve million, six hundred eighteen thousand, three hundred forty-one".