20806908 is an even 8-digits composite number following 20806907
and preceding 20806909 . In scientific notation, it is written as 2.0806908 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors.
There are 6935632 positive integers (up to 20806908) that are relatively prime to 20806908.
20806908 has 12 divisors, whose sum is 48549480
The reverse of 20806908 is 80960802
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eight hundred six thousand nine hundred eight
Scientific notation
2.0806908 × 10^7
Engineering notation
2.0806908 × 10^6
Prime Factorization
2 × 2 × 3 × 1733909
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10403454
Product of the distinct prime numbers
The prime factorization of 20806908 is 2 × 2 × 3 × 1733909.
Since it has a total of 4 prime factors.
8 , 4 , 35 , 10 , 737 , 14 , 5162 , 9467 , 53702 , 80289 , 828247 , 286101 , 785804 , 6788624 , 37188318 , 50547283 , 743530034 , 636922619 , 8517465086 , 9169296921
n×2
41613816
n×3
62420724
n×4
83227632
n×5
104034540
n÷2
10403454
n÷3
6935636
n÷3
5201727
n÷5
4161381.6
n2
432927420520464
n3
9.0078810094466E+21
n4
1.874261514385E+29
n5
3.899758689775E+36
2 √n
4561.4589771256
3 √n
275.04421548003
4 √n
67.538573993871
5 √n
29.083154429771
1 , 2 , 3 , 4 , 6 , 12 , 1733909 , 3467818 , 5201727 , 6935636 , 10403454 , 20806908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20806907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20806908 can be divided by 12 positive divisors.
The sum of these divisors (counting 20806908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010111110011111100
3
Ternary
1110011002201020
4
Quaternary
1033113303330
5
Quinary
20311310113
6
Senary
2021544140
8
Octal
117276374
10
Decimal
20806908
12
Duodecimal
6b75050
16
Hexadecimal
13d7cfc
20
Vigesimal
6a0h58
36
Base36
cdypo
md5
eef0139583b64a77ac082cb884151ce8
sha1
5971354a233eb2ff7e1bc0ccf450544d1143a0d5
sha256
eb3100f96701388a435ae80cf1ebbc7f8906f416d5ea73cab88f3d32e4ae3317
sha512
0df8182138b0ec1d1cbe961b504d403d2cd7eb38b54cbfe48f9016d282166c68444573e69c98310771347e442e1054a0b2c50883acd8de065ea7c5d638f0fbeb
ripemd-160
f600828c127252717ef78ef9e3119cdd6057fbfb
Diameter
41613816
Circumference
130733658.63344
Area
1.3600816038447E+15
Volume
3.7732123738251E+22
Surface area
5.4403264153787E+15
Circumference
130733658.63344
Perimeter
83227632
Area
432927420520464
Diagonal
29425411.484649
Surface area
2597564523122784
Volume
9.0078810094466E+21
Space diagonal
36038621.804411
Perimeter
62420724
Area
1.874630720828E+14
Altitude
18019310.902206
Surface area
1.874630720828E+14
Volume
1.0615889576502E+21
Height
9808470.4948831