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54111145103 = 68697877587
BaseRepresentation
bin110010011001010001…
…101000110010001111
312011200002122222111022
4302121101220302033
51341304423120403
640505221344355
73623632100351
oct623121506217
9164602588438
1054111145103
1120a48370234
12a5a18680bb
135144707a72
1428947370d1
15161a771d38
hexc99468c8f

54111145103 has 4 divisors (see below), whose sum is σ = 54119029560. Its totient is φ = 54103260648.

The previous prime is 54111145087. The next prime is 54111145117. The reversal of 54111145103 is 30154111145.

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 54111145103 - 24 = 54111145087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54111145603) 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 in 3 ways as a sum of consecutive naturals, for example, 3931925 + ... + 3945662.

It is an arithmetic number, because the mean of its divisors is an integer number (13529757390).

Almost surely, 254111145103 is an apocalyptic number.

54111145103 is a deficient number, since it is larger than the sum of its proper divisors (7884457).

54111145103 is an equidigital number, since it uses as much as digits as its factorization.

54111145103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884456.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 54111145103 its reverse (30154111145), we get a palindrome (84265256248).

The spelling of 54111145103 in words is "fifty-four billion, one hundred eleven million, one hundred forty-five thousand, one hundred three".

Divisors: 1 6869 7877587 54111145103