20646009 is an odd 8-digits composite number following 20646008
and preceding 20646010 . In scientific notation, it is written as 2.0646009 × 10^7.
The sum of its digits is 27. It has a total of 6 prime factors and 28 positive divisors.
There are 13594392 positive integers (up to 20646009) that are relatively prime to 20646009.
20646009 has 28 divisors, whose sum is 31338496
The reverse of 20646009 is 90064602
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million six hundred forty-six thousand nine
Scientific notation
2.0646009 × 10^7
Engineering notation
2.0646009 × 10^6
Prime Factorization
9 × 9 × 3 × 3 × 223 × 127
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
764667
Product of the distinct prime numbers
The prime factorization of 20646009 is 9 × 9 × 3 × 3 × 223 × 127.
Since it has a total of 6 prime factors.
3 , 4 , 85 , 66 , 691 , 531 , 7532 , 6628 , 8957 , 86536 , 848634 , 528454 , 798713 , 9291352 , 20432363 , 43191851 , 543870040 , 970197260 , 2271497501 , 8294913019
n×2
41292018
n×3
61938027
n×4
82584036
n×5
103230045
n÷2
10323004.5
n÷3
6882003
n÷3
5161502.25
n÷5
4129201.8
n2
426257687628081
n3
8.8005200550885E+21
n4
1.8169561626204E+29
n5
3.7512893286066E+36
2 √n
4543.7879572005
3 √n
274.3334114178
4 √n
67.407625363904
5 √n
29.038034872451
1 , 3 , 9 , 27 , 81 , 127 , 223 , 243 , 381 , 669 , 729 , 1143 , 2007 , 3429 , 6021 , 10287 , 18063 , 28321 , 30861 , 54189 , 84963 , 92583 , 162567 , 254889 , 764667 , 2294001 , 6882003 , 20646009
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20646008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20646009 can be divided by 28 positive divisors.
The sum of these divisors (counting 20646009) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
1001110110000100001111001
3
Ternary
1102211221000000
4
Quaternary
1032300201321
5
Quinary
20241133014
6
Senary
2014303213
8
Octal
116604171
10
Decimal
20646009
12
Duodecimal
6ab7b09
16
Hexadecimal
13b0879
20
Vigesimal
690f09
36
Base36
caik9
md5
9136ae40579dbbe03cc9ef6c610952b4
sha1
c9a0e946d4bd550756a37a26d2111681a31df378
sha256
5065795176db17e2a0cc3aa9f471c39e76887133d1dcb175c6be36a53a902425
sha512
b6fab26f7118ba9f3c7909bfe8fbfc64391a781e3a19a75fbaa9e5c72bcd053e6560ba89c270ae52f4280487a1372354d601a9b3e5925274a761334d994198ad
ripemd-160
f79cf5f098276c352e63326e0193b6f87576d473
Diameter
41292018
Circumference
129722700.4007
Area
1.3391280199886E+15
Volume
3.6863532203781E+22
Surface area
5.3565120799542E+15
Circumference
129722700.4007
Perimeter
82584036
Area
426257687628081
Diagonal
29197865.936677
Surface area
2557546125768486
Volume
8.8005200550885E+21
Space diagonal
35759936.561524
Perimeter
61938027
Area
1.8457499302216E+14
Altitude
17879968.280762
Surface area
1.8457499302216E+14
Volume
1.0371512348202E+21
Height
9732621.9788923