Search a number
-
+
12227893 is a prime number
BaseRepresentation
bin101110101001…
…010100110101
3212000020111221
4232221110311
511112243033
61114030341
7205635556
oct56512465
925006457
1012227893
1169a1aa7
1241183b1
1326c1952
1418a432d
15111812d
hexba9535

12227893 has 2 divisors, whose sum is σ = 12227894. Its totient is φ = 12227892.

The previous prime is 12227863. The next prime is 12227903. The reversal of 12227893 is 39872221.

12227893 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9847044 + 2380849 = 3138^2 + 1543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12227893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12227863) 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, 6113946 + 6113947.

It is an arithmetic number, because the mean of its divisors is an integer number (6113947).

Almost surely, 212227893 is an apocalyptic number.

It is an amenable number.

12227893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12227893 is an equidigital number, since it uses as much as digits as its factorization.

12227893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 12227893 is about 3496.8404310177. The cubic root of 12227893 is about 230.3830604689.

The spelling of 12227893 in words is "twelve million, two hundred twenty-seven thousand, eight hundred ninety-three".