20941721 is an odd 8-digits composite number following 20941720
and preceding 20941722 . In scientific notation, it is written as 2.0941721 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20629092 positive integers (up to 20941721) that are relatively prime to 20941721.
20941721 has 4 divisors, whose sum is 21254352
The reverse of 20941721 is 12714902
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million nine hundred forty-one thousand seven hundred twenty-one
Scientific notation
2.0941721 × 10^7
Engineering notation
2.0941721 × 10^6
Prime Factorization
67 × 312563
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20941721
Product of the distinct prime numbers
The prime factorization of 20941721 is 67 × 312563.
Since it has a total of 2 prime factors.
3 , 7 , 18 , 55 , 581 , 696 , 3653 , 4361 , 22555 , 84679 , 850064 , 534548 , 5173730 , 7654538 , 53306753 , 40709521 , 929548034 , 242140332 , 7159248245 , 2808329393
n×2
41883442
n×3
62825163
n×4
83766884
n×5
104708605
n÷2
10470860.5
n÷3
6980573.6666667
n÷3
5235430.25
n÷5
4188344.2
n2
438555678441841
n3
9.1841106608947E+21
n4
1.9233108309358E+29
n5
4.0277438817736E+36
2 √n
4576.2125169183
3 √n
275.63696317728
4 √n
67.647708881516
5 √n
29.120744494865
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
-20941720
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 20941721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20941721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111000101110011001
3
Ternary
1110101221122022
4
Quaternary
1033320232121
5
Quinary
20330113341
6
Senary
2024504225
8
Octal
117705631
10
Decimal
20941721
12
Duodecimal
701b075
16
Hexadecimal
13f8b99
20
Vigesimal
6ahe61
36
Base36
cguqh
md5
3db330d2b228e6909b15314616c1f95c
sha1
1e6f2770ff87101ab1927d5553c2d2d26adfdd03
sha256
2a264d14f9746e80168764d93e2f4d10c638143ee6e9e75a106927522791d5ae
sha512
2e57b802aacb716ec13e8caac100fe6fee5c1552645be5036a7509a431ddb61692c7c26228f453addde5869e182608766588b3d2053540cebb9da28e39aa2a4d
ripemd-160
1bf324bfebc8bb0e8b0bd4c339851dc09adb87f3
Diameter
41883442
Circumference
131580713.69425
Area
1.377763297583E+15
Volume
3.847031277603E+22
Surface area
5.5110531903319E+15
Circumference
131580713.69425
Perimeter
83766884
Area
438555678441841
Diagonal
29616065.857633
Surface area
2631334070651046
Volume
9.1841106608947E+21
Space diagonal
36272124.769932
Perimeter
62825163
Area
1.8990017925228E+14
Altitude
18136062.384966
Surface area
1.8990017925228E+14
Volume
1.0823578212477E+21
Height
9872021.9525445