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54030047 = 228123687
BaseRepresentation
bin1100111000011…
…0111011011111
310202200000021212
43032012323133
5102312430142
65210015035
71224151001
oct316067337
9122600255
1054030047
1128553635
121611747b
13b269856
147266371
154b23d82
hex3386edf

54030047 has 4 divisors (see below), whose sum is σ = 54056016. Its totient is φ = 54004080.

The previous prime is 54030043. The next prime is 54030049. The reversal of 54030047 is 74003045.

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 54030047 - 22 = 54030043 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 (54030043) 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, 9563 + ... + 14124.

It is an arithmetic number, because the mean of its divisors is an integer number (13514004).

Almost surely, 254030047 is an apocalyptic number.

54030047 is a deficient number, since it is larger than the sum of its proper divisors (25969).

54030047 is a wasteful number, since it uses less digits than its factorization.

54030047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25968.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 54030047 is about 7350.5133834311. The cubic root of 54030047 is about 378.0464072434.

The spelling of 54030047 in words is "fifty-four million, thirty thousand, forty-seven".

Divisors: 1 2281 23687 54030047