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56043043 = 78006149
BaseRepresentation
bin1101010111001…
…0011000100011
310220110021121021
43111302120203
5103321334133
65321110311
71250233540
oct325623043
9126407537
1056043043
11296a8a71
1216928397
13b7c2b84
14762bbc7
154dc052d
hex3572623

56043043 has 4 divisors (see below), whose sum is σ = 64049200. Its totient is φ = 48036888.

The previous prime is 56043041. The next prime is 56043047. The reversal of 56043043 is 34034065.

56043043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56043043 - 21 = 56043041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56042999 and 56043017.

It is not an unprimeable number, because it can be changed into a prime (56043041) 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 in 3 ways as a sum of consecutive naturals, for example, 4003068 + ... + 4003081.

It is an arithmetic number, because the mean of its divisors is an integer number (16012300).

Almost surely, 256043043 is an apocalyptic number.

56043043 is a deficient number, since it is larger than the sum of its proper divisors (8006157).

56043043 is an equidigital number, since it uses as much as digits as its factorization.

56043043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8006156.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 56043043 is about 7486.1901525409. The cubic root of 56043043 is about 382.6842332332.

The spelling of 56043043 in words is "fifty-six million, forty-three thousand, forty-three".

Divisors: 1 7 8006149 56043043