20809311 is an odd 8-digits composite number following 20809310
and preceding 20809312 . In scientific notation, it is written as 2.0809311 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13697112 positive integers (up to 20809311) that are relatively prime to 20809311.
20809311 has 8 divisors, whose sum is 28097280
The reverse of 20809311 is 11390802
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million eight hundred nine thousand three hundred eleven
Scientific notation
2.0809311 × 10^7
Engineering notation
2.0809311 × 10^6
Prime Factorization
3 × 79 × 87803
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20809311
Product of the distinct prime numbers
The prime factorization of 20809311 is 3 × 79 × 87803.
Since it has a total of 3 prime factors.
8 , 8 , 80 , 99 , 763 , 274 , 7774 , 8938 , 17253 , 29713 , 66272 , 644525 , 9203240 , 4267892 , 33384577 , 10367283 , 401065565 , 851105216 , 435690460 , 4060038698
n×2
41618622
n×3
62427933
n×4
83237244
n×5
104046555
n÷2
10404655.5
n÷3
6936437
n÷3
5202327.75
n÷5
4161862.2
n2
433027424294721
n3
9.0110023436778E+21
n4
1.8751275019132E+29
n5
3.9020111351965E+36
2 √n
4561.7223720871
3 √n
275.05480340284
4 √n
67.540523925175
5 √n
29.083826164291
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
-20809310
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 20809311 can be divided by 8 positive divisors.
The sum of these divisors (counting 20809311) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000011001011111
3
Ternary
1110011020000020
4
Quaternary
1033120121133
5
Quinary
20311344221
6
Senary
2022003223
8
Octal
117303137
10
Decimal
20809311
12
Duodecimal
6b76513
16
Hexadecimal
13d865f
20
Vigesimal
6a135b
36
Base36
ce0kf
md5
acc320f254602de0a4874fe0717eeca2
sha1
5b779bd118b22add38c9094ca5a035815ad4c5fb
sha256
822870d5ad483f156f2c46d5f61d360eec75ef7d4fdea9dfc755b906172618a2
sha512
7c1f77f0b0d1da2a238da60ce0646a63e8902d1fcdb61aa2f0c4dc5da199b2b8cf6d6117a0771b7fb36327be4489fbab645f7f98708954c9f4baaf1985d1a729
ripemd-160
d704d8540bdb7d5b13ec25d6df7ff227bf4626b3
Diameter
41618622
Circumference
130748757.12773
Area
1.3603957749672E+15
Volume
3.7745198352505E+22
Surface area
5.4415830998688E+15
Circumference
130748757.12773
Perimeter
83237244
Area
433027424294721
Diagonal
29428809.83984
Surface area
2598164545768326
Volume
9.0110023436778E+21
Space diagonal
36042783.922502
Perimeter
62427933
Area
1.8750637498729E+14
Altitude
18021391.961251
Surface area
1.8750637498729E+14
Volume
1.0619568104171E+21
Height
9809603.2799465