Search a number
-
+
22861841 is a prime number
BaseRepresentation
bin101011100110…
…1100000010001
31121000111112212
41113031200101
521323034331
62134001505
7365215412
oct127154021
947014485
1022861841
11119a5492
1277a6295
134975c22
143071809
152018d2b
hex15cd811

22861841 has 2 divisors, whose sum is σ = 22861842. Its totient is φ = 22861840.

The previous prime is 22861837. The next prime is 22861859. The reversal of 22861841 is 14816822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12103441 + 10758400 = 3479^2 + 3280^2 .

It is a cyclic number.

It is not a de Polignac number, because 22861841 - 22 = 22861837 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22861798 and 22861807.

It is not a weakly prime, because it can be changed into another prime (22861871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11430920 + 11430921.

It is an arithmetic number, because the mean of its divisors is an integer number (11430921).

Almost surely, 222861841 is an apocalyptic number.

It is an amenable number.

22861841 is a deficient number, since it is larger than the sum of its proper divisors (1).

22861841 is an equidigital number, since it uses as much as digits as its factorization.

22861841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 32.

The square root of 22861841 is about 4781.4057556330. The cubic root of 22861841 is about 283.8161252735.

The spelling of 22861841 in words is "twenty-two million, eight hundred sixty-one thousand, eight hundred forty-one".