Base | Representation |
---|---|
bin | 11010110111001111111011 |
3 | 111020202212102 |
4 | 122313033323 |
5 | 3300321133 |
6 | 410534015 |
7 | 113566511 |
oct | 32671773 |
9 | 14222772 |
10 | 7042043 |
11 | 3a7a878 |
12 | 243730b |
13 | 15c73b8 |
14 | d144b1 |
15 | 9417e8 |
hex | 6b73fb |
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".
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