20508971 is an odd 8-digits composite number following 20508970
and preceding 20508972 . In scientific notation, it is written as 2.0508971 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17461800 positive integers (up to 20508971) that are relatively prime to 20508971.
20508971 has 8 divisors, whose sum is 23595264
The reverse of 20508971 is 17980502
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million five hundred eight thousand nine hundred seventy-one
Scientific notation
2.0508971 × 10^7
Engineering notation
2.0508971 × 10^6
Prime Factorization
7 × 151 × 19403
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20508971
Product of the distinct prime numbers
The prime factorization of 20508971 is 7 × 151 × 19403.
Since it has a total of 3 prime factors.
3 , 6 , 34 , 2 , 160 , 869 , 6321 , 2088 , 53275 , 4591 , 579379 , 840623 , 6633494 , 4092102 , 84247109 , 87276587 , 342259271 , 773902237 , 3984241968 , 7225590971
n×2
41017942
n×3
61526913
n×4
82035884
n×5
102544855
n÷2
10254485.5
n÷3
6836323.6666667
n÷3
5127242.75
n÷5
4101794.2
n2
420617891478841
n3
8.6264401384207E+21
n4
1.7691941063211E+29
n5
3.628435061991E+36
2 √n
4528.6831419299
3 √n
273.72510035336
4 √n
67.295491245178
5 √n
28.999384094153
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
-20508970
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 20508971 can be divided by 8 positive divisors.
The sum of these divisors (counting 20508971) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111000100101011
3
Ternary
1102120222000112
4
Quaternary
1032033010223
5
Quinary
20222241341
6
Senary
2011324535
8
Octal
116170453
10
Decimal
20508971
12
Duodecimal
6a5074b
16
Hexadecimal
138f12b
20
Vigesimal
683c8b
36
Base36
c7ktn
md5
a5f6ab3b4aa6cab052d8c94f3b513d68
sha1
e8541ce1544065e3734cd68d533b02b12d360d55
sha256
aa368c4b74f7d0b03d31cdca37ad61004cfc93d52d5acd350a25e1c53d41871b
sha512
fba0d395d336c96aa60d2ef483b191cbe4759693e56928031bce3bd9826830c8aef630ecda9f152f70b9196fc9e442422a702e35f4d9b96014572a367a14154b
ripemd-160
66617c315ddf000237e5a910fcddec1c912e2843
Diameter
41017942
Circumference
128861665.25257
Area
1.3214100778384E+15
Volume
3.6134347953993E+22
Surface area
5.2856403113534E+15
Circumference
128861665.25257
Perimeter
82035884
Area
420617891478841
Diagonal
29004064.938517
Surface area
2523707348873046
Volume
8.6264401384207E+21
Space diagonal
35522579.782957
Perimeter
61526913
Area
1.8213288965346E+14
Altitude
17761289.891478
Surface area
1.8213288965346E+14
Volume
1.0166357198962E+21
Height
9668021.6461722