20971208 is an even 8-digits composite number following 20971207
and preceding 20971209 . In scientific notation, it is written as 2.0971208 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 16 positive divisors.
There are 10409616 positive integers (up to 20971208) that are relatively prime to 20971208.
20971208 has 16 divisors, whose sum is 39606000
The reverse of 20971208 is 80217902
Previous prime number is 139
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred seventy-one thousand two hundred eight
Scientific notation
2.0971208 × 10^7
Engineering notation
2.0971208 × 10^6
Prime Factorization
2 × 2 × 2 × 139 × 18859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5242802
Product of the distinct prime numbers
The prime factorization of 20971208 is 2 × 2 × 2 × 139 × 18859.
Since it has a total of 5 prime factors.
6 , 9 , 35 , 41 , 572 , 495 , 8426 , 3007 , 86395 , 6655 , 480347 , 866852 , 5515556 , 9835050 , 34045917 , 91923826 , 183830631 , 3115830 , 8121439172 , 7363631938
n×2
41942416
n×3
62913624
n×4
83884832
n×5
104856040
n÷2
10485604
n÷3
6990402.6666667
n÷3
5242802
n÷5
4194241.6
n2
439791564979264
n3
9.2229603858257E+21
n4
1.9341662062691E+29
n5
4.056180181824E+36
2 √n
4579.4331526948
3 √n
275.76627275622
4 √n
67.671509165193
5 √n
29.128940575533
1 , 2 , 4 , 8 , 139 , 278 , 556 , 1112 , 18859 , 37718 , 75436 , 150872 , 2621401 , 5242802 , 10485604 , 20971208
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20971207
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20971208 can be divided by 16 positive divisors.
The sum of these divisors (counting 20971208) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111111111111011001000
3
Ternary
1110110110002102
4
Quaternary
1033333323020
5
Quinary
20332034313
6
Senary
2025252532
8
Octal
117777310
10
Decimal
20971208
12
Duodecimal
7034148
16
Hexadecimal
13ffec8
20
Vigesimal
6b1808
36
Base36
chhhk
md5
16c4b44b7c8fd8554f6616b6887a6310
sha1
2760b94fe67e39df1dc76cc2b87b2b7302c92d2d
sha256
645501244ab0dd99150054a91a8f5db3623624fa18adeb84347f51bd13953aba
sha512
1b81e8d2d73b6ed614f5c3ad64638a80c822a02f05105df476e042f22de14701c64f22b02818731c73c3e7803896e92c18126ae04e2002471005cd0e67d12972
ripemd-160
81b9d2fc6f14838ac071b25d8c6de7726b7883c5
Diameter
41942416
Circumference
131765985.97941
Area
1.3816459496496E+15
Volume
3.8633046123279E+22
Surface area
5.5265837985985E+15
Circumference
131765985.97941
Perimeter
83884832
Area
439791564979264
Diagonal
29657766.772947
Surface area
2638749389875584
Volume
9.2229603858257E+21
Space diagonal
36323197.752095
Perimeter
62913624
Area
1.9043533382108E+14
Altitude
18161598.876047
Surface area
1.9043533382108E+14
Volume
1.0869363052387E+21
Height
9885922.2576491