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284530109 is a prime number
BaseRepresentation
bin10000111101011…
…001010110111101
3201211101121221012
4100331121112331
51040314430414
644122245005
710023315563
oct2075312675
9654347835
10284530109
11136678756
127b356765
1346c42616
1429b07a33
1519ea533e
hex10f595bd

284530109 has 2 divisors, whose sum is σ = 284530110. Its totient is φ = 284530108.

The previous prime is 284530069. The next prime is 284530123. The reversal of 284530109 is 901035482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256704484 + 27825625 = 16022^2 + 5275^2 .

It is a cyclic number.

It is not a de Polignac number, because 284530109 - 28 = 284529853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284500109) 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 as a sum of consecutive naturals, namely, 142265054 + 142265055.

It is an arithmetic number, because the mean of its divisors is an integer number (142265055).

Almost surely, 2284530109 is an apocalyptic number.

It is an amenable number.

284530109 is a deficient number, since it is larger than the sum of its proper divisors (1).

284530109 is an equidigital number, since it uses as much as digits as its factorization.

284530109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 284530109 is about 16868.0203047068. The cubic root of 284530109 is about 657.7225674536.

The spelling of 284530109 in words is "two hundred eighty-four million, five hundred thirty thousand, one hundred nine".