20971211 is an odd 8-digits composite number following 20971210
and preceding 20971212 . In scientific notation, it is written as 2.0971211 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20938152 positive integers (up to 20971211) that are relatively prime to 20971211.
20971211 has 4 divisors, whose sum is 21004272
The reverse of 20971211 is 11217902
Previous prime number is 647
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million nine hundred seventy-one thousand two hundred eleven
Scientific notation
2.0971211 × 10^7
Engineering notation
2.0971211 × 10^6
Prime Factorization
647 × 32413
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20971211
Product of the distinct prime numbers
The prime factorization of 20971211 is 647 × 32413.
Since it has a total of 2 prime factors.
3 , 5 , 67 , 44 , 528 , 498 , 1852 , 6009 , 55785 , 93676 , 779051 , 673300 , 5116043 , 4378658 , 15110899 , 85392469 , 970638536 , 815170139 , 5924379764 , 538815889
n×2
41942422
n×3
62913633
n×4
83884844
n×5
104856055
n÷2
10485605.5
n÷3
6990403.6666667
n÷3
5242802.75
n÷5
4194242.2
n2
439791690806521
n3
9.2229643439503E+21
n4
1.9341673130246E+29
n5
4.0561830830742E+36
2 √n
4579.4334802462
3 √n
275.76628590597
4 √n
67.67151158535
5 √n
29.128941408931
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
-20971210
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 20971211 can be divided by 4 positive divisors.
The sum of these divisors (counting 20971211) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111111111011001011
3
Ternary
1110110110002112
4
Quaternary
1033333323023
5
Quinary
20332034321
6
Senary
2025252535
8
Octal
117777313
10
Decimal
20971211
12
Duodecimal
703414b
16
Hexadecimal
13ffecb
20
Vigesimal
6b180b
36
Base36
chhhn
md5
e65cade01d4939c7cb845ea9f4f55ab5
sha1
7563749613063184bae85da72c9585ba1e21b502
sha256
8c65924c50b425764a5163ed84fcb92cece7676e142db79a820afd58ca115a80
sha512
c6a6204f240cf96bc5044b77653402e0f2c0910c5d7f441f3f00eb3ab80e3e3e7cfcdc40363f1312bc99b4cafc1c720fceec26824201d3be2c3d3681560ec969
ripemd-160
37bf70fa546b28edc2bc752eb2fb354a7aa3489f
Diameter
41942422
Circumference
131766004.82896
Area
1.3816463449476E+15
Volume
3.8633062703033E+22
Surface area
5.5265853797904E+15
Circumference
131766004.82896
Perimeter
83884844
Area
439791690806521
Diagonal
29657771.015588
Surface area
2638750144839126
Volume
9.2229643439503E+21
Space diagonal
36323202.948247
Perimeter
62913633
Area
1.9043538830588E+14
Altitude
18161601.474124
Surface area
1.9043538830588E+14
Volume
1.0869367717082E+21
Height
9885923.6718626