20921471 is an odd 8-digits composite number following 20921470
and preceding 20921472 . In scientific notation, it is written as 2.0921471 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20844000 positive integers (up to 20921471) that are relatively prime to 20921471.
20921471 has 4 divisors, whose sum is 20998944
The reverse of 20921471 is 17412902
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million nine hundred twenty-one thousand four hundred seventy-one
Scientific notation
2.0921471 × 10^7
Engineering notation
2.0921471 × 10^6
Prime Factorization
271 × 77201
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921471
Product of the distinct prime numbers
The prime factorization of 20921471 is 271 × 77201.
Since it has a total of 2 prime factors.
5 , 6 , 34 , 40 , 3 , 680 , 9989 , 9388 , 50037 , 45571 , 698511 , 866142 , 1811645 , 3546532 , 25202118 , 6498044 , 165485151 , 555801236 , 8647954748 , 6571804378
n×2
41842942
n×3
62764413
n×4
83685884
n×5
104607355
n÷2
10460735.5
n÷3
6973823.6666667
n÷3
5230367.75
n÷5
4184294.2
n2
437707948803841
n3
9.157494157369E+21
n4
1.9158824844607E+29
n5
4.0083079838052E+36
2 √n
4573.9994534324
3 √n
275.54809037061
4 √n
67.631349634858
5 √n
29.115110542476
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
-20921470
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 20921471 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921471) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011110001111111
3
Ternary
1110100220212022
4
Quaternary
1033303301333
5
Quinary
20323441341
6
Senary
2024230355
8
Octal
117636177
10
Decimal
20921471
12
Duodecimal
700b3bb
16
Hexadecimal
13f3c7f
20
Vigesimal
6af3db
36
Base36
cgf3z
md5
20377f9e76dceebc1766f1f0211b38e9
sha1
a6d83f967a5b27153f5a1746ea4b00985beb8000
sha256
cb1b479955603cc5efe3322b470c373baf96fd9c6e6d3f0060c51f4f104491c3
sha512
cfc9899862f2960b016f5dce96f041fa6cb025318d6c0a1ac6296e8513056c4e1e845a74584b31fe5d46eda593471dc88306cd2adb26e3152bc8abe55619456c
ripemd-160
064776fb134b1fcb365709d85f1b46181f4d51e5
Diameter
41842942
Circumference
131453479.19178
Area
1.37510007638E+15
Volume
3.8358821826776E+22
Surface area
5.50040030552E+15
Circumference
131453479.19178
Perimeter
83685884
Area
437707948803841
Diagonal
29587428.032995
Surface area
2626247692823046
Volume
9.157494157369E+21
Space diagonal
36237050.741079
Perimeter
62764413
Area
1.8953310155125E+14
Altitude
18118525.370539
Surface area
1.8953310155125E+14
Volume
1.0792210362253E+21
Height
9862476.0109985