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300206045 = 5531378269
BaseRepresentation
bin10001111001001…
…100011111011101
3202220220001021102
4101321030133131
51103323043140
645442242445
710303465166
oct2171143735
9686801242
10300206045
11144505277
1284656425
134a270819
142bc2876d
151b54ee15
hex11e4c7dd

300206045 has 16 divisors (see below), whose sum is σ = 369768240. Its totient is φ = 233885184.

The previous prime is 300206033. The next prime is 300206063. The reversal of 300206045 is 540602003.

It can be written as a sum of positive squares in 8 ways, for example, as 32752729 + 267453316 = 5723^2 + 16354^2 .

It is not a de Polignac number, because 300206045 - 26 = 300205981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32171 + ... + 40439.

It is an arithmetic number, because the mean of its divisors is an integer number (23110515).

Almost surely, 2300206045 is an apocalyptic number.

It is an amenable number.

300206045 is a deficient number, since it is larger than the sum of its proper divisors (69562195).

300206045 is a wasteful number, since it uses less digits than its factorization.

300206045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8464.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 300206045 is about 17326.4550615526. The cubic root of 300206045 is about 669.5861742443.

Adding to 300206045 its reverse (540602003), we get a palindrome (840808048).

The spelling of 300206045 in words is "three hundred million, two hundred six thousand, forty-five".

Divisors: 1 5 53 137 265 685 7261 8269 36305 41345 438257 1132853 2191285 5664265 60041209 300206045