20215971 is an odd 8-digits composite number following 20215970
and preceding 20215972 . In scientific notation, it is written as 2.0215971 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13477308 positive integers (up to 20215971) that are relatively prime to 20215971.
20215971 has 4 divisors, whose sum is 22462200
The reverse of 20215971 is 17951202
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million two hundred fifteen thousand nine hundred seventy-one
Scientific notation
2.0215971 × 10^7
Engineering notation
2.0215971 × 10^6
Prime Factorization
9 × 2246219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20215971
Product of the distinct prime numbers
The prime factorization of 20215971 is 9 × 2246219.
Since it has a total of 2 prime factors.
7 , 8 , 1 , 90 , 539 , 934 , 981 , 4231 , 20965 , 63659 , 297081 , 73909 , 9250343 , 3234631 , 17915496 , 35894211 , 973264925 , 934686492 , 8470465629 , 6660057405
n×2
40431942
n×3
60647913
n×4
80863884
n×5
101079855
n÷2
10107985.5
n÷3
6738657
n÷3
5053992.75
n÷5
4043194.2
n2
408685483472841
n3
8.2619738820079E+21
n4
1.6702382440143E+29
n5
3.3765487904084E+36
2 √n
4496.2174102238
3 √n
272.41532481205
4 √n
67.053839638188
5 √n
28.916046947197
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
-20215970
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 20215971 can be divided by 4 positive divisors.
The sum of these divisors (counting 20215971) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111100010100011
3
Ternary
1102001002002200
4
Quaternary
1031013202203
5
Quinary
20133402341
6
Senary
2001144243
8
Octal
115074243
10
Decimal
20215971
12
Duodecimal
692b083
16
Hexadecimal
13478a3
20
Vigesimal
666jib
36
Base36
c1aqr
md5
bee45b53324b3c83e176e9e69eb6e9e2
sha1
66ec706fed73026e445871f1f075e960226cecfd
sha256
bf6e5d8b44c56fb10aabadac14e95de715e4b7f63d6eeaa10fd025c97868d76c
sha512
bef62e74d374218ed8eaf3dc343ef8afc9b75092467d71016a965fc9fdb036e0ed41e7a5171948c4f5e83fff12172d2b70ad33ba7f5dc8e818f936a51dfc206c
ripemd-160
7a1afab48c3ae2ed11230fbe72af418e2f8acd54
Diameter
40431942
Circumference
127020691.95757
Area
1.2839233125071E+15
Volume
3.4607675269156E+22
Surface area
5.1356932500283E+15
Circumference
127020691.95757
Perimeter
80863884
Area
408685483472841
Diagonal
28589700.364741
Surface area
2452112900837046
Volume
8.2619738820079E+21
Space diagonal
35015088.896339
Perimeter
60647913
Area
1.769660054227E+14
Altitude
17507544.448169
Surface area
1.769660054227E+14
Volume
9.7368295965899E+20
Height
9529900.1215804