12806989 is an odd 8-digits composite number following 12806988
and preceding 12806990 . In scientific notation, it is written as 1.2806989 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 11821680 positive integers (up to 12806989) that are relatively prime to 12806989.
12806989 has 4 divisors, whose sum is 12882940
The reverse of 12806989 is 98960821
Previous prime number is 169
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twelve million eight hundred six thousand nine hundred eighty-nine
Scientific notation
1.2806989 × 10^7
Engineering notation
1.2806989 × 10^6
Prime Factorization
169 × 75781
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12806989
Product of the distinct prime numbers
The prime factorization of 12806989 is 169 × 75781.
Since it has a total of 2 prime factors.
10 , 7 , 99 , 45 , 963 , 53 , 5571 , 7754 , 25364 , 4363 , 735927 , 426990 , 1618049 , 8725215 , 3006871 , 42043333 , 728664262 , 134342614 , 818668052 , 652352053
n×2
25613978
n×3
38420967
n×4
51227956
n×5
64034945
n÷2
6403494.5
n÷3
4268996.3333333
n÷3
3201747.25
n÷5
2561397.8
n2
164018967246121
n3
2.1005891093124E+21
n4
2.6902221616484E+28
n5
3.4453645631787E+35
2 √n
3578.6853731503
3 √n
233.96398622713
4 √n
59.822114415576
5 √n
26.393039473988
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
-12806988
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 12806989 can be divided by 4 positive divisors.
The sum of these divisors (counting 12806989) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000110110101101001101
3
Ternary
220002122212221
4
Quaternary
300312231031
5
Quinary
11234310424
6
Senary
1134255341
8
Octal
60665515
10
Decimal
12806989
12
Duodecimal
4357551
16
Hexadecimal
c36b4d
20
Vigesimal
400h99
36
Base36
7mhxp
md5
f356260b2c5a95841930f23871742a79
sha1
cdfbfd390b28df1a475a5a0dd75274aafe2c9da5
sha256
96757bfeecff742c340a0b8142c895ba342608fdbdc1a03a4282c9372909c808
sha512
49317482063b9db1286d56060cb8284f3afa0151f01c25a08a608fae8767e47122b446759e7d20b72f70dbf3a96e26ac21cc60aa48da023a74d80f7a6540624e
ripemd-160
c405bcf24a2f2c3ab6d8e3acad791d7215c0cee0
Diameter
25613978
Circumference
80468685.114011
Area
5.152807825498E+14
Volume
8.7989270853689E+21
Surface area
2.0611231301992E+15
Circumference
80468685.114011
Perimeter
51227956
Area
164018967246121
Diagonal
18111817.536963
Surface area
984113803476726
Volume
2.1005891093124E+21
Space diagonal
22182355.639976
Perimeter
38420967
Area
71022296168814
Altitude
11091177.819988
Surface area
71022296168814
Volume
2.4755680061357E+20
Height
6037272.512321