20806837 is an odd 8-digits composite number following 20806836
and preceding 20806838 . In scientific notation, it is written as 2.0806837 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20773836 positive integers (up to 20806837) that are relatively prime to 20806837.
20806837 has 4 divisors, whose sum is 20839840
The reverse of 20806837 is 73860802
Previous prime number is 643
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eight hundred six thousand eight hundred thirty-seven
Scientific notation
2.0806837 × 10^7
Engineering notation
2.0806837 × 10^6
Prime Factorization
643 × 32359
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20806837
Product of the distinct prime numbers
The prime factorization of 20806837 is 643 × 32359.
Since it has a total of 2 prime factors.
10 , 3 , 4 , 36 , 528 , 722 , 3963 , 5762 , 44118 , 52396 , 76281 , 680823 , 1137811 , 1046059 , 6219267 , 55035661 , 20496855 , 129127768 , 2307126242 , 3955507047
n×2
41613674
n×3
62420511
n×4
83227348
n×5
104034185
n÷2
10403418.5
n÷3
6935612.3333333
n÷3
5201709.25
n÷5
4161367.4
n2
432924465944569
n3
9.0077887962207E+21
n4
1.8742359321339E+29
n5
3.8996921539453E+36
2 √n
4561.4511945213
3 √n
275.04390263262
4 √n
67.538516377852
5 √n
29.08313458149
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
-20806836
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 20806837 can be divided by 4 positive divisors.
The sum of these divisors (counting 20806837) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111110010110101
3
Ternary
1110011002121121
4
Quaternary
1033113302311
5
Quinary
20311304322
6
Senary
2021543541
8
Octal
117276265
10
Decimal
20806837
12
Duodecimal
6b74bb1
16
Hexadecimal
13d7cb5
20
Vigesimal
6a0h1h
36
Base36
cdynp
md5
d44ab3b7015abea3ff1239ede912e8e8
sha1
8138e3860cbf6d15d2df322171d13dfc7b3086f6
sha256
e107ba68033e44775fc3cc1932dc0f930e6eaf6c70fddc237473e7f0d208f6a4
sha512
608be1fdd77954c91c39b04649b2d05b8d6f7c6daed0ee49bcd96f5fd461d6013efff6891a229c32efc2a0245f62fd430da50f14b2c7f61b9013ea3291779fc7
ripemd-160
15ad8785f45421e652f406c1a465d15873293f14
Diameter
41613674
Circumference
130733212.52728
Area
1.3600723217707E+15
Volume
3.7731737476394E+22
Surface area
5.440289287083E+15
Circumference
130733212.52728
Perimeter
83227348
Area
432924465944569
Diagonal
29425311.075486
Surface area
2597546795667414
Volume
9.0077887962207E+21
Space diagonal
36038498.828804
Perimeter
62420511
Area
1.874617927139E+14
Altitude
18019249.414402
Surface area
1.874617927139E+14
Volume
1.0615780902173E+21
Height
9808437.0251621