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54109745 = 561177409
BaseRepresentation
bin1100111001101…
…0011000110001
310202211001121122
43032122120301
5102323002440
65211432025
71224632234
oct316323061
9122731548
1054109745
11285a84a8
1216155615
13b296c01
14728741b
154b3c7b5
hex339a631

54109745 has 8 divisors (see below), whose sum is σ = 65996520. Its totient is φ = 42577920.

The previous prime is 54109721. The next prime is 54109751. The reversal of 54109745 is 54790145.

54109745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3073009 + 51036736 = 1753^2 + 7144^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54109745 - 210 = 54108721 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 88400 + ... + 89009.

It is an arithmetic number, because the mean of its divisors is an integer number (8249565).

Almost surely, 254109745 is an apocalyptic number.

It is an amenable number.

54109745 is a deficient number, since it is larger than the sum of its proper divisors (11886775).

54109745 is a wasteful number, since it uses less digits than its factorization.

54109745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177475.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 54109745 is about 7355.9326397133. The cubic root of 54109745 is about 378.2321973237.

The spelling of 54109745 in words is "fifty-four million, one hundred nine thousand, seven hundred forty-five".

Divisors: 1 5 61 305 177409 887045 10821949 54109745