20198281 is an odd 8-digits composite number following 20198280
and preceding 20198282 . In scientific notation, it is written as 2.0198281 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19705600 positive integers (up to 20198281) that are relatively prime to 20198281.
20198281 has 4 divisors, whose sum is 20690964
The reverse of 20198281 is 18289102
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred ninety-eight thousand two hundred eighty-one
Scientific notation
2.0198281 × 10^7
Engineering notation
2.0198281 × 10^6
Prime Factorization
41 × 492641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20198281
Product of the distinct prime numbers
The prime factorization of 20198281 is 41 × 492641.
Since it has a total of 2 prime factors.
9 , 5 , 55 , 32 , 172 , 450 , 9498 , 5810 , 15085 , 38466 , 776629 , 830747 , 5886928 , 629842 , 77946173 , 65944756 , 672869245 , 192307503 , 3032191527 , 7573106809
n×2
40396562
n×3
60594843
n×4
80793124
n×5
100991405
n÷2
10099140.5
n÷3
6732760.3333333
n÷3
5049570.25
n÷5
4039656.2
n2
407970555354961
n3
8.2403039167856E+21
n4
1.6643997403664E+29
n5
3.3618013652247E+36
2 √n
4494.2497705401
3 √n
272.3358425484
4 √n
67.039165944544
5 √n
28.910984573407
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
-20198280
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 20198281 can be divided by 4 positive divisors.
The sum of these divisors (counting 20198281) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000011001110001001
3
Ternary
1102000011211111
4
Quaternary
1031003032021
5
Quinary
20132321111
6
Senary
2000530321
8
Octal
115031611
10
Decimal
20198281
12
Duodecimal
69209a1
16
Hexadecimal
1343389
20
Vigesimal
664fe1
36
Base36
c0x3d
md5
f55fceb7e184b7754345c1102f9e5dda
sha1
fa9c940e73f462abb0321110557d78f03e09ba3f
sha256
5f7e4df6d2d101c9821985d8990eadf2ba32a3f70b82400f5742092bf5176c56
sha512
91ba0062e129193ff3250ddc96247393471c1ccbd1edb7e442eac2498c00d936bafb85925176cfeb292ad769e796017d34180f6b474f741ff852b08e1b9272bd
ripemd-160
8e005ef08c02d964fff3e88a5515568b13fc8a8e
Diameter
40396562
Circumference
126909542.40948
Area
1.2816772995841E+15
Volume
3.4516904331094E+22
Surface area
5.1267091983364E+15
Circumference
126909542.40948
Perimeter
80793124
Area
407970555354961
Diagonal
28564682.926823
Surface area
2447823332129766
Volume
8.2403039167856E+21
Space diagonal
34984448.917553
Perimeter
60594843
Area
1.7665643246672E+14
Altitude
17492224.458777
Surface area
1.7665643246672E+14
Volume
9.7112912976619E+20
Height
9521560.9756076