20682721 is an odd 8-digits composite number following 20682720
and preceding 20682722 . In scientific notation, it is written as 2.0682721 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20269440 positive integers (up to 20682721) that are relatively prime to 20682721.
20682721 has 8 divisors, whose sum is 21098600
The reverse of 20682721 is 12728602
Previous prime number is 409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred eighty-two thousand seven hundred twenty-one
Scientific notation
2.0682721 × 10^7
Engineering notation
2.0682721 × 10^6
Prime Factorization
61 × 409 × 829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20682721
Product of the distinct prime numbers
The prime factorization of 20682721 is 61 × 409 × 829.
Since it has a total of 3 prime factors.
2 , 6 , 38 , 51 , 488 , 148 , 945 , 2045 , 75875 , 57644 , 416020 , 672259 , 6715352 , 5864362 , 39753822 , 98378203 , 573028537 , 844305801 , 2381027418 , 3373716310
n×2
41365442
n×3
62048163
n×4
82730884
n×5
103413605
n÷2
10341360.5
n÷3
6894240.3333333
n÷3
5170680.25
n÷5
4136544.2
n2
427774947963841
n3
8.8475498995256E+21
n4
1.8299140610547E+29
n5
3.7847601978771E+36
2 √n
4547.8259641284
3 √n
274.49591844434
4 √n
67.437570864677
5 √n
29.048354415597
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
-20682720
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 20682721 can be divided by 8 positive divisors.
The sum of these divisors (counting 20682721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001011111100001
3
Ternary
1102220210100201
4
Quaternary
1032321133201
5
Quinary
20243321341
6
Senary
2015145201
8
Octal
116713741
10
Decimal
20682721
12
Duodecimal
6b15201
16
Hexadecimal
13b97e1
20
Vigesimal
6956g1
36
Base36
cbaw1
md5
af53ceb687a922ae74caba719695456b
sha1
b948456f74f502bbcf999bb9fa2696c3f1856ea8
sha256
9be6d59d8f58221ebb8272f416ab1ea806df1ca51d23e3930607850b5a9078c2
sha512
b5e993859eb749e5a67029f3830e38104de938f8a5662a444fb69f45c5ac64085c3ee925d7d68e2ed7d97a4f173d0cd2fd1fc951dc26e302c9bf2403dd194478
ripemd-160
e36c4b3d06cbb468466271451103e03174dd503e
Diameter
41365442
Circumference
129953368.69969
Area
1.343894633913E+15
Volume
3.7060530355492E+22
Surface area
5.3755785356518E+15
Circumference
129953368.69969
Perimeter
82730884
Area
427774947963841
Diagonal
29249784.544979
Surface area
2566649687783046
Volume
8.8475498995256E+21
Space diagonal
35823523.610772
Perimeter
62048163
Area
1.8523198601963E+14
Altitude
17911761.805386
Surface area
1.8523198601963E+14
Volume
1.0426937551402E+21
Height
9749928.1816596