Search a number
-
+
7042043 is a prime number
BaseRepresentation
bin11010110111001111111011
3111020202212102
4122313033323
53300321133
6410534015
7113566511
oct32671773
914222772
107042043
113a7a878
12243730b
1315c73b8
14d144b1
159417e8
hex6b73fb

7042043 has 2 divisors, whose sum is σ = 7042044. Its totient is φ = 7042042.

The previous prime is 7042033. The next prime is 7042051. The reversal of 7042043 is 3402407.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3402407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7042043 - 28 = 7041787 is a prime.

It is a super-2 number, since 2×70420432 = 99180739227698, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7042033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521021 + 3521022.

It is an arithmetic number, because the mean of its divisors is an integer number (3521022).

Almost surely, 27042043 is an apocalyptic number.

7042043 is a deficient number, since it is larger than the sum of its proper divisors (1).

7042043 is an equidigital number, since it uses as much as digits as its factorization.

7042043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 7042043 is about 2653.6847966554. The cubic root of 7042043 is about 191.6753320174.

The spelling of 7042043 in words is "seven million, forty-two thousand, forty-three".