12805909 is an odd 8-digits composite number following 12805908
and preceding 12805910 . In scientific notation, it is written as 1.2805909 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 12749760 positive integers (up to 12805909) that are relatively prime to 12805909.
12805909 has 4 divisors, whose sum is 12862060
The reverse of 12805909 is 90950821
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twelve million eight hundred five thousand nine hundred nine
Scientific notation
1.2805909 × 10^7
Engineering notation
1.2805909 × 10^6
Prime Factorization
229 × 55921
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12805909
Product of the distinct prime numbers
The prime factorization of 12805909 is 229 × 55921.
Since it has a total of 2 prime factors.
7 , 1 , 73 , 16 , 698 , 538 , 6525 , 4937 , 48675 , 60220 , 625183 , 110769 , 7129054 , 3843339 , 88259934 , 62928434 , 812943702 , 633701454 , 2278201648 , 3668589768
n×2
25611818
n×3
38417727
n×4
51223636
n×5
64029545
n÷2
6402954.5
n÷3
4268636.3333333
n÷3
3201477.25
n÷5
2561181.8
n2
163991305316281
n3
2.1000577326715E+21
n4
2.6893148219338E+28
n5
3.4439120882035E+35
2 √n
3578.53447657
3 √n
233.95740939609
4 √n
59.820853191592
5 √n
26.392594319484
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12805908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12805909 can be divided by 4 positive divisors.
The sum of these divisors (counting 12805909) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000110110011100010101
3
Ternary
220002121101221
4
Quaternary
300312130111
5
Quinary
11234242114
6
Senary
1134250341
8
Octal
60663425
10
Decimal
12805909
12
Duodecimal
43569b1
16
Hexadecimal
c36715
20
Vigesimal
400ef9
36
Base36
7mh3p
md5
efbdc44b75facc720bb6852ec3378303
sha1
81e506fdd6d3b3b33a84d114b15a7f0446f44b52
sha256
48af9d96098bb558ad2cecea48587096b05a5634adb518b22b93a5188ccf3080
sha512
60528dfbe7a2b65555408804c68ba1135d9aea9ab823124e907712c4c46c1610f577131c43e10b2447a8ead6a2be1ba7ea488dad55b47990b43c5933c223791e
ripemd-160
54590b5647221a4877b1afbb0ebe82a541b7756a
Diameter
25611818
Circumference
80461899.273879
Area
5.1519388003423E+14
Volume
8.7967012601003E+21
Surface area
2.0607755201369E+15
Circumference
80461899.273879
Perimeter
51223636
Area
163991305316281
Diagonal
18110290.186316
Surface area
983947831897686
Volume
2.1000577326715E+21
Space diagonal
22180485.025104
Perimeter
38417727
Area
71010318201835
Altitude
11090242.512552
Surface area
71010318201835
Volume
2.4749417727588E+20
Height
6036763.3954386