20831788 is an even 8-digits composite number following 20831787
and preceding 20831789 . In scientific notation, it is written as 2.0831788 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 6 positive divisors.
There are 10415892 positive integers (up to 20831788) that are relatively prime to 20831788.
20831788 has 6 divisors, whose sum is 36455636
The reverse of 20831788 is 88713802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million eight hundred thirty-one thousand seven hundred eighty-eight
Scientific notation
2.0831788 × 10^7
Engineering notation
2.0831788 × 10^6
Prime Factorization
2 × 2 × 5207947
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10415894
Product of the distinct prime numbers
The prime factorization of 20831788 is 2 × 2 × 5207947.
Since it has a total of 3 prime factors.
9 , 3 , 89 , 77 , 387 , 845 , 8892 , 2912 , 69380 , 93068 , 150553 , 952283 , 4563920 , 445658 , 28694198 , 89198140 , 820094434 , 695818647 , 6894145849 , 9554468508
n×2
41663576
n×3
62495364
n×4
83327152
n×5
104158940
n÷2
10415894
n÷3
6943929.3333333
n÷3
5207947
n÷5
4166357.6
n2
433963391276944
n3
9.0402333668423E+21
n4
1.8832422496859E+29
n5
3.9231303298099E+36
2 √n
4564.185359952
3 √n
275.15380046867
4 √n
67.558754872718
5 √n
29.09010638088
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20831787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20831788 can be divided by 6 positive divisors.
The sum of these divisors (counting 20831788) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111011101111000101100
3
Ternary
1110012100211201
4
Quaternary
1033131320230
5
Quinary
20313104123
6
Senary
2022255244
8
Octal
117357054
10
Decimal
20831788
12
Duodecimal
6b87524
16
Hexadecimal
13dde2c
20
Vigesimal
6a3j98
36
Base36
cehws
md5
d98065548c75bff07fbf5eeba159adc9
sha1
41b823b55941cc72e22704c11e2af9a594077150
sha256
44453e0939ee697acc749eb46f0cddfdaced9ed8815616b84049c15b3ac12011
sha512
b35df6c5fc3aa72cb562974e2628e302fe81dd172269adcbe9da300a64a8238b902e3fbb9e0f96dadc1d1b3be1dbdaa2a34b94d3254b2142f3cf30941b621d94
ripemd-160
e1b9dfca801c2f5375b258a7c2e954025574f572
Diameter
41663576
Circumference
130889984.28388
Area
1.3633362019626E+15
Volume
3.7867640976012E+22
Surface area
5.4533448078502E+15
Circumference
130889984.28388
Perimeter
83327152
Area
433963391276944
Diagonal
29460597.118081
Surface area
2603780347661664
Volume
9.0402333668423E+21
Space diagonal
36081715.228504
Perimeter
62495364
Area
1.8791166057914E+14
Altitude
18040857.614252
Surface area
1.8791166057914E+14
Volume
1.0654017195339E+21
Height
9820199.0393604