20809511 is an odd 8-digits composite number following 20809510
and preceding 20809512 . In scientific notation, it is written as 2.0809511 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 20475072 positive integers (up to 20809511) that are relatively prime to 20809511.
20809511 has 8 divisors, whose sum is 21146160
The reverse of 20809511 is 11590802
Previous prime number is 613
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million eight hundred nine thousand five hundred eleven
Scientific notation
2.0809511 × 10^7
Engineering notation
2.0809511 × 10^6
Prime Factorization
83 × 613 × 409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20809511
Product of the distinct prime numbers
The prime factorization of 20809511 is 83 × 613 × 409.
Since it has a total of 3 prime factors.
10 , 4 , 25 , 94 , 574 , 528 , 4741 , 3752 , 575 , 20824 , 461522 , 60318 , 8888070 , 7779448 , 63496296 , 15255058 , 896202346 , 891774390 , 4623700808 , 2393820095
n×2
41619022
n×3
62428533
n×4
83238044
n×5
104047555
n÷2
10404755.5
n÷3
6936503.6666667
n÷3
5202377.75
n÷5
4161902.2
n2
433035748059121
n3
9.0112621626295E+21
n4
1.8751995909712E+29
n5
3.9021986515511E+36
2 √n
4561.7442935789
3 √n
275.05568459147
4 √n
67.540686208973
5 √n
29.083882069485
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20809510
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20809511 can be divided by 8 positive divisors.
The sum of these divisors (counting 20809511) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000011100100111
3
Ternary
1110011020021122
4
Quaternary
1033120130213
5
Quinary
20311401021
6
Senary
2022004155
8
Octal
117303447
10
Decimal
20809511
12
Duodecimal
6b7665b
16
Hexadecimal
13d8727
20
Vigesimal
6a13fb
36
Base36
ce0pz
md5
fb314bdbdab53febc0b8656a853bc0e9
sha1
99db4eef52304785cb1a4781517f0254e69e1a62
sha256
89abd5aa2e2991e9f928b7f247f100ffaf106373d29c94a4e6f5b975e53f41b0
sha512
fbdd368ca17a97f999e905a744235056b327bbafce6037fdcb1507f4c3bae9af5bb6ecfeb9ff93eb70663329c88b1904c4516fd15b729a596dfc55786cc4e9f9
ripemd-160
584d01bcd3058a90bf24733435485572c006d27f
Diameter
41619022
Circumference
130750013.76479
Area
1.3604219248443E+15
Volume
3.7746286679585E+22
Surface area
5.4416876993772E+15
Circumference
130750013.76479
Perimeter
83238044
Area
433035748059121
Diagonal
29429092.682552
Surface area
2598214488354726
Volume
9.0112621626295E+21
Space diagonal
36043130.332663
Perimeter
62428533
Area
1.87509979283E+14
Altitude
18021565.166332
Surface area
1.87509979283E+14
Volume
1.0619874303742E+21
Height
9809697.5608507