20208081 is an odd 8-digits composite number following 20208080
and preceding 20208082 . In scientific notation, it is written as 2.0208081 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13472052 positive integers (up to 20208081) that are relatively prime to 20208081.
20208081 has 4 divisors, whose sum is 26944112
The reverse of 20208081 is 18080202
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million two hundred eight thousand eighty-one
Scientific notation
2.0208081 × 10^7
Engineering notation
2.0208081 × 10^6
Prime Factorization
3 × 6736027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20208081
Product of the distinct prime numbers
The prime factorization of 20208081 is 3 × 6736027.
Since it has a total of 2 prime factors.
1 , 4 , 4 , 73 , 807 , 477 , 1227 , 8939 , 83022 , 78194 , 70019 , 774035 , 9141742 , 6149580 , 19933850 , 65208758 , 650551964 , 178105908 , 387336280 , 8630013355
n×2
40416162
n×3
60624243
n×4
80832324
n×5
101040405
n÷2
10104040.5
n÷3
6736027
n÷3
5052020.25
n÷5
4041616.2
n2
408366537702561
n3
8.2523040715829E+21
n4
1.6676322911518E+29
n5
3.3699648417811E+36
2 √n
4495.3399204065
3 √n
272.37988028497
4 √n
67.047296145381
5 √n
28.913789492081
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
-20208080
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 20208081 can be divided by 4 positive divisors.
The sum of these divisors (counting 20208081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000101100111010001
3
Ternary
1102000200021110
4
Quaternary
1031011213101
5
Quinary
20133124311
6
Senary
2001043533
8
Octal
115054721
10
Decimal
20208081
12
Duodecimal
69265a9
16
Hexadecimal
13459d1
20
Vigesimal
666041
36
Base36
c14nl
md5
87ac833028a8e6ffe80e2406c4081f25
sha1
d4695cda276819223ef2e918c69cf8401af5e668
sha256
d57a3820f42966ccf0e2c61d02071d6d20d33a8673e7b63f47c9f05fb791262a
sha512
1b9e58d55194fb7a2b86a27a84f327aab952f4b7cc411a06e7a4266a66c0aeaff96c95beb678450387d25a59e68da8ba37040b17181a1ce453dc7ce8b5ec2c61
ripemd-160
9e982408961addd8c70d5f13da5ebe1e2c38dbae
Diameter
40416162
Circumference
126971117.62549
Area
1.2829213148183E+15
Volume
3.4567170461965E+22
Surface area
5.1316852592731E+15
Circumference
126971117.62549
Perimeter
80832324
Area
408366537702561
Diagonal
28578542.219734
Surface area
2450199226215366
Volume
8.2523040715829E+21
Space diagonal
35001423.015467
Perimeter
60624243
Area
1.7682789785296E+14
Altitude
17500711.507734
Surface area
1.7682789785296E+14
Volume
9.7254336157161E+20
Height
9526180.7399114