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2309386109 = 101178912781
BaseRepresentation
bin1000100110100110…
…0110111101111101
312221221111222011212
42021221212331331
514212200323414
61021054054205
7111141313052
oct21151467575
95857458155
102309386109
11a85651a68
125454aa365
132aa5b0474
1417c9d3029
15d7b2783e
hex89a66f7d

2309386109 has 8 divisors (see below), whose sum is σ = 2333737560. Its totient is φ = 2285064000.

The previous prime is 2309386091. The next prime is 2309386111. The reversal of 2309386109 is 9016839032.

It can be written as a sum of positive squares in 4 ways, for example, as 1804125625 + 505260484 = 42475^2 + 22478^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2309386109 - 28 = 2309385853 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 (2309382109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174299 + ... + 187079.

It is an arithmetic number, because the mean of its divisors is an integer number (291717195).

Almost surely, 22309386109 is an apocalyptic number.

It is an amenable number.

2309386109 is a deficient number, since it is larger than the sum of its proper divisors (24351451).

2309386109 is a wasteful number, since it uses less digits than its factorization.

2309386109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14671.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 2309386109 is about 48056.0725507193. The cubic root of 2309386109 is about 1321.7992965262.

The spelling of 2309386109 in words is "two billion, three hundred nine million, three hundred eighty-six thousand, one hundred nine".

Divisors: 1 101 1789 12781 180689 1290881 22865209 2309386109