20720811 is an odd 8-digits composite number following 20720810
and preceding 20720812 . In scientific notation, it is written as 2.0720811 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13086792 positive integers (up to 20720811) that are relatively prime to 20720811.
20720811 has 8 divisors, whose sum is 29081920
The reverse of 20720811 is 11802702
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million seven hundred twenty thousand eight hundred eleven
Scientific notation
2.0720811 × 10^7
Engineering notation
2.0720811 × 10^6
Prime Factorization
3 × 19 × 363523
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20720811
Product of the distinct prime numbers
The prime factorization of 20720811 is 3 × 19 × 363523.
Since it has a total of 3 prime factors.
4 , 1 , 39 , 70 , 6 , 799 , 6950 , 4512 , 90079 , 91220 , 286385 , 11028 , 4369207 , 3446441 , 84920270 , 13312362 , 277814176 , 417632231 , 1275811830 , 6179380865
n×2
41441622
n×3
62162433
n×4
82883244
n×5
103604055
n÷2
10360405.5
n÷3
6906937
n÷3
5180202.75
n÷5
4144162.2
n2
429352008497721
n3
8.8965218205517E+21
n4
1.8434314720103E+29
n5
3.8197395122977E+36
2 √n
4552.0117530604
3 √n
274.66432210297
4 √n
67.468598274015
5 √n
29.059045829435
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
-20720810
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 20720811 can be divided by 8 positive divisors.
The sum of these divisors (counting 20720811) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000010110010101011
3
Ternary
1102222201121110
4
Quaternary
1033002302223
5
Quinary
20301031221
6
Senary
2020041403
8
Octal
117026253
10
Decimal
20720811
12
Duodecimal
6b33263
16
Hexadecimal
13c2cab
20
Vigesimal
69a20b
36
Base36
cc4a3
md5
68382913a463a557d494fc83c7fc3611
sha1
7b6c39bbd7fa1dec1f5fee23be26701f8c684852
sha256
f315e55192e249c764ca68824816afe7bc06de0a1eb1fa8c54e875523ddaacbd
sha512
c7feb125a258607fbea82ccc2c4874b730a7d328395a7bd82abfea0ae9b6a3e1dd9e26fb0e96e3672549ada69b5bcfb13d29694123ae5d4551803957b555225f
ripemd-160
fb27c050981621514d21af7795ba80a44af8a96b
Diameter
41441622
Circumference
130192695.22805
Area
1.3488491157005E+15
Volume
3.7265663458595E+22
Surface area
5.3953964628019E+15
Circumference
130192695.22805
Perimeter
82883244
Area
429352008497721
Diagonal
29303651.93957
Surface area
2576112050986326
Volume
8.8965218205517E+21
Space diagonal
35889497.426032
Perimeter
62162433
Area
1.8591487326245E+14
Altitude
17944748.713016
Surface area
1.8591487326245E+14
Volume
1.048465151381E+21
Height
9767883.9798565