Search a number
-
+
12813413 is a prime number
BaseRepresentation
bin110000111000…
…010001100101
3220002222200212
4300320101211
511240012123
61134345205
7213624614
oct60702145
926088625
1012813413
1172619a8
12435b205
132868302
1419b787b
1511d1878
hexc38465

12813413 has 2 divisors, whose sum is σ = 12813414. Its totient is φ = 12813412.

The previous prime is 12813403. The next prime is 12813487. The reversal of 12813413 is 31431821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9042049 + 3771364 = 3007^2 + 1942^2 .

It is an emirp because it is prime and its reverse (31431821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12813413 - 26 = 12813349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12813403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406706 + 6406707.

It is an arithmetic number, because the mean of its divisors is an integer number (6406707).

Almost surely, 212813413 is an apocalyptic number.

It is an amenable number.

12813413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12813413 is an equidigital number, since it uses as much as digits as its factorization.

12813413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 12813413 is about 3579.5827969192. The cubic root of 12813413 is about 234.0030985539.

The spelling of 12813413 in words is "twelve million, eight hundred thirteen thousand, four hundred thirteen".