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54020663 = 349154787
BaseRepresentation
bin1100111000010…
…0101000110111
310202122112102022
43032010220313
5102312130123
65205503355
71224111434
oct316045067
9122575368
1054020663
1128547584
1216111b5b
13b2654b8
147262b8b
154b211c8
hex3384a37

54020663 has 4 divisors (see below), whose sum is σ = 54175800. Its totient is φ = 53865528.

The previous prime is 54020653. The next prime is 54020669. The reversal of 54020663 is 36602045.

54020663 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, and also an emirpimes, since its reverse is a distinct semiprime: 36602045 = 57320409.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54020663 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 (54020669) 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, 77045 + ... + 77742.

It is an arithmetic number, because the mean of its divisors is an integer number (13543950).

Almost surely, 254020663 is an apocalyptic number.

54020663 is a deficient number, since it is larger than the sum of its proper divisors (155137).

54020663 is a wasteful number, since it uses less digits than its factorization.

54020663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155136.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 54020663 is about 7349.8750329512. The cubic root of 54020663 is about 378.0245194662.

The spelling of 54020663 in words is "fifty-four million, twenty thousand, six hundred sixty-three".

Divisors: 1 349 154787 54020663