Search a number
-
+
4000043 is a prime number
BaseRepresentation
bin1111010000100100101011
321112020000202
433100210223
52011000133
6221422415
745666635
oct17204453
97466022
104000043
112292323
12140aa0b
13aa08b8
14761a55
155402e8
hex3d092b

4000043 has 2 divisors, whose sum is σ = 4000044. Its totient is φ = 4000042.

The previous prime is 4000039. The next prime is 4000063. The reversal of 4000043 is 3400004.

4000043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4000043 - 22 = 4000039 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3999988 and 4000033.

It is not a weakly prime, because it can be changed into another prime (4000063) 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, 2000021 + 2000022.

It is an arithmetic number, because the mean of its divisors is an integer number (2000022).

Almost surely, 24000043 is an apocalyptic number.

4000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000043 is an equidigital number, since it uses as much as digits as its factorization.

4000043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 4000043 is about 2000.0107499711. The cubic root of 4000043 is about 158.7406740135.

Adding to 4000043 its reverse (3400004), we get a palindrome (7400047).

The spelling of 4000043 in words is "four million, forty-three", and thus it is an aban number.