20982561 is an odd 8-digits composite number following 20982560
and preceding 20982562 . In scientific notation, it is written as 2.0982561 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13988372 positive integers (up to 20982561) that are relatively prime to 20982561.
20982561 has 4 divisors, whose sum is 27976752
The reverse of 20982561 is 16528902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred eighty-two thousand five hundred sixty-one
Scientific notation
2.0982561 × 10^7
Engineering notation
2.0982561 × 10^6
Prime Factorization
3 × 6994187
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20982561
Product of the distinct prime numbers
The prime factorization of 20982561 is 3 × 6994187.
Since it has a total of 2 prime factors.
8 , 8 , 21 , 93 , 595 , 650 , 5874 , 2093 , 63666 , 78271 , 802311 , 183554 , 8468512 , 2466157 , 53167727 , 82450520 , 777792018 , 384198522 , 6560370226 , 5093425018
n×2
41965122
n×3
62947683
n×4
83930244
n×5
104912805
n÷2
10491280.5
n÷3
6994187
n÷3
5245640.25
n÷5
4196512.2
n2
440267866118721
n3
9.2379473571759E+21
n4
1.9383579393673E+29
n5
4.0671713702609E+36
2 √n
4580.6725488731
3 √n
275.81602683976
4 √n
67.680665990171
5 √n
29.132093748914
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
-20982560
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 20982561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20982561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000010101100100001
3
Ternary
1110111000122220
4
Quaternary
1100002230201
5
Quinary
20332420221
6
Senary
2025421253
8
Octal
120025441
10
Decimal
20982561
12
Duodecimal
703a829
16
Hexadecimal
1402b21
20
Vigesimal
6b2g81
36
Base36
chq8x
md5
86e6676d84b41441374d536469fbadc5
sha1
0ffaded01bc43e0b9b2a2b39363bbc91da504ab9
sha256
983b3a66ae3df28b9ce13558f5016dfd6ba97c0c324356079132fd76ad16fabf
sha512
57847c460d664616fb8f5d45a17c05c4ec06f6623acc7e44c77a9049386d8e40f28a11f88ef42427fe387f84d5667e85c93aa4d6be035b2b720ebedd772f4139
ripemd-160
56450d07a3c7bf608f692193aa5629a897306863
Diameter
41965122
Circumference
131837318.9822
Area
1.3831422938102E+15
Volume
3.8695823402071E+22
Surface area
5.5325691752409E+15
Circumference
131837318.9822
Perimeter
83930244
Area
440267866118721
Diagonal
29673822.339521
Surface area
2641607196712326
Volume
9.2379473571759E+21
Space diagonal
36342861.724913
Perimeter
62947683
Area
1.9064157826439E+14
Altitude
18171430.862457
Surface area
1.9064157826439E+14
Volume
1.0887025367506E+21
Height
9891274.1131736