20806980 is an even 8-digits composite number following 20806979
and preceding 20806981 . In scientific notation, it is written as 2.0806980 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors.
There are 5221888 positive integers (up to 20806980) that are relatively prime to 20806980.
20806980 has 12 divisors, whose sum is 36556800
The reverse of 20806980 is 08960802
Previous prime number is 255
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 eighty
Scientific notation
2.0806980 × 10^7
Engineering notation
2.0806980 × 10^6
Prime Factorization
2 × 2 × 255 × 20399
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10403490
Product of the distinct prime numbers
The prime factorization of 20806980 is 2 × 2 × 255 × 20399.
Since it has a total of 4 prime factors.
10 , 10 , 44 , 5 , 565 , 308 , 2133 , 1840 , 3879 , 41029 , 507791 , 734831 , 3348787 , 7430352 , 18415157 , 39681166 , 552737193 , 700253564 , 8901295962 , 2422745823
n×2
41613960
n×3
62420940
n×4
83227920
n×5
104034900
n÷2
10403490
n÷3
6935660
n÷3
5201745
n÷5
4161396
n2
432930416720400
n3
9.007974522093E+21
n4
1.874287457217E+29
n5
3.8998261636565E+36
2 √n
4561.4668693305
3 √n
275.04453273301
4 √n
67.538632421234
5 √n
29.08317455755
1 , 2 , 4 , 255 , 510 , 1020 , 20399 , 40798 , 81596 , 5201745 , 10403490 , 20806980
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
-20806979
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 20806980 can be divided by 12 positive divisors.
The sum of these divisors (counting 20806980) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010111110101000100
3
Ternary
1110011002210220
4
Quaternary
1033113311010
5
Quinary
20311310410
6
Senary
2021544340
8
Octal
117276504
10
Decimal
20806980
12
Duodecimal
6b750b0
16
Hexadecimal
13d7d44
20
Vigesimal
6a0h90
36
Base36
cdyro
md5
35d44bc90e87c0fe7cbd4a78217a435e
sha1
6f56f6bfc727a162057c295884d68da4160e5e35
sha256
4e4901df9ce9558584038fa8f090c62c7794bd20fd101d727b50774360c42bdd
sha512
43d55c5ff40bee6a1661e60e5ed2c568b7882c44704ea6b78737e2aa408a46c7b91e4c4b80a91c5a88c4ac2ead561361d9093dea22cb1ed6422d82c7e6c7db27
ripemd-160
401db68ce2be9b9bcee1d0c41a1978d7a7ba6813
Diameter
41613960
Circumference
130734111.02278
Area
1.3600910166844E+15
Volume
3.7732515443109E+22
Surface area
5.4403640667375E+15
Circumference
130734111.02278
Perimeter
83227920
Area
432930416720400
Diagonal
29425513.308026
Surface area
2597582500322400
Volume
9.007974522093E+21
Space diagonal
36038746.512069
Perimeter
62420940
Area
1.8746436947542E+14
Altitude
18019373.256035
Surface area
1.8746436947542E+14
Volume
1.0615999782213E+21
Height
9808504.4360086