Search a number
-
+
8068008909 = 32689336303
BaseRepresentation
bin1111000001110010…
…00000101111001101
3202211021101022120210
413200321000233031
5113010402241114
63412325233033
7403634641602
oct74071005715
922737338523
108068008909
1134701a9564
121691b62779
139b766558c
1456772c6a9
15323481259
hex1e0e40bcd

8068008909 has 4 divisors (see below), whose sum is σ = 10757345216. Its totient is φ = 5378672604.

The previous prime is 8068008889. The next prime is 8068008911. The reversal of 8068008909 is 9098008608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8068008909 - 25 = 8068008877 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 (8068008919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344668149 + ... + 1344668154.

It is an arithmetic number, because the mean of its divisors is an integer number (2689336304).

Almost surely, 28068008909 is an apocalyptic number.

It is an amenable number.

8068008909 is a deficient number, since it is larger than the sum of its proper divisors (2689336307).

8068008909 is a wasteful number, since it uses less digits than its factorization.

8068008909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689336306.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 8068008909 is about 89822.0958840307. The cubic root of 8068008909 is about 2005.6514247410.

The spelling of 8068008909 in words is "eight billion, sixty-eight million, eight thousand, nine hundred nine".

Divisors: 1 3 2689336303 8068008909