20001971 is an odd 8-digits composite number following 20001970
and preceding 20001972 . In scientific notation, it is written as 2.0001971 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 18121320 positive integers (up to 20001971) that are relatively prime to 20001971.
20001971 has 8 divisors, whose sum is 21895104
The reverse of 20001971 is 17910002
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one thousand nine hundred seventy-one
Scientific notation
2.0001971 × 10^7
Engineering notation
2.0001971 × 10^6
Prime Factorization
11 × 307 × 5923
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20001971
Product of the distinct prime numbers
The prime factorization of 20001971 is 11 × 307 × 5923.
Since it has a total of 3 prime factors.
3 , 7 , 30 , 71 , 799 , 982 , 4031 , 33 , 50882 , 97308 , 496607 , 175386 , 5596912 , 8401191 , 96461837 , 2981635 , 169441392 , 106254114 , 6612158998 , 7879351216
n×2
40003942
n×3
60005913
n×4
80007884
n×5
100009855
n÷2
10000985.5
n÷3
6667323.6666667
n÷3
5000492.75
n÷5
4000394.2
n2
400078843884841
n3
8.0023654330981E+21
n4
1.6006308132423E+29
n5
3.2015771108179E+36
2 √n
4472.3563140698
3 √n
271.45067822846
4 √n
66.875678045683
5 √n
28.85456680803
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
-20001970
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 20001971 can be divided by 8 positive divisors.
The sum of these divisors (counting 20001971) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010011010010110011
3
Ternary
1101122012112202
4
Quaternary
1030103102303
5
Quinary
20110030341
6
Senary
1552413415
8
Octal
114232263
10
Decimal
20001971
12
Duodecimal
684726b
16
Hexadecimal
13134b3
20
Vigesimal
6504ib
36
Base36
bwpmb
md5
5fd1dd20daa897632d51af455819aee4
sha1
8ab048bf2d2aff8ce74b514abbc9894102cd6771
sha256
7f0a30c9fff2fc4c0a6358b28bb186b1ac5f33c62fb019a8f86ed0fd3d22b812
sha512
6a2e2c753625408bfcc7575ecccc704e0c0cff070b8fe96f254b70c93901ac7573c6f11c87ba5e26ac26432241f114dc9c3e853ee273a6a70b1590088a2a6685
ripemd-160
c45441ff7c2c4f074cafffa072fe1a6c94758c3b
Diameter
40003942
Circumference
125676090.30183
Area
1.2568847568053E+15
Volume
3.3520229941283E+22
Surface area
5.0275390272213E+15
Circumference
125676090.30183
Perimeter
80007884
Area
400078843884841
Diagonal
28287058.662393
Surface area
2400473063309046
Volume
8.0023654330981E+21
Space diagonal
34644430.023519
Perimeter
60005913
Area
1.7323922116049E+14
Altitude
17322215.01176
Surface area
1.7323922116049E+14
Volume
9.4308781054608E+20
Height
9429019.5541311