20802009 is an odd 8-digits composite number following 20802008
and preceding 20802010 . In scientific notation, it is written as 2.0802009 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13868004 positive integers (up to 20802009) that are relatively prime to 20802009.
20802009 has 4 divisors, whose sum is 27736016
The reverse of 20802009 is 90020802
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million eight hundred two thousand nine
Scientific notation
2.0802009 × 10^7
Engineering notation
2.0802009 × 10^6
Prime Factorization
3 × 6934003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20802009
Product of the distinct prime numbers
The prime factorization of 20802009 is 3 × 6934003.
Since it has a total of 2 prime factors.
1 , 2 , 6 , 12 , 619 , 998 , 5653 , 1981 , 31718 , 72942 , 124365 , 21386 , 8716857 , 1625339 , 85984984 , 63825275 , 653130954 , 910935030 , 7959492016 , 3150577973
n×2
41604018
n×3
62406027
n×4
83208036
n×5
104010045
n÷2
10401004.5
n÷3
6934003
n÷3
5200502.25
n÷5
4160401.8
n2
432723578436081
n3
9.0015197731396E+21
n4
1.8724969533453E+29
n5
3.8951698475961E+36
2 √n
4560.9219462736
3 √n
275.02262733925
4 √n
67.534598142534
5 √n
29.081784771251
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
-20802008
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 20802009 can be divided by 4 positive divisors.
The sum of these divisors (counting 20802009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010110100111011001
3
Ternary
1110010211222210
4
Quaternary
1033112213121
5
Quinary
20311131014
6
Senary
2021505333
8
Octal
117264731
10
Decimal
20802009
12
Duodecimal
6b72249
16
Hexadecimal
13d69d9
20
Vigesimal
6a0509
36
Base36
cduxl
md5
2883da6578f5bdc0bb785d719edaf319
sha1
6475015269f26fe8854c1ffa6df59a49627d78c9
sha256
3d9c28072f33011cb4fe10d563484c85a9bb6689288b3a139cd1a4bd44482f68
sha512
70a4c7608ae616ec14a9c8d29526071fa6f20a86417204d2605e13138174d523b98e3bab85d3350d6571b7830710cdc30913a8122edc063ace6f918b061a9640
ripemd-160
97282314783acaaa582eb3900fcf597658cab7a9
Diameter
41604018
Circumference
130702877.30862
Area
1.3594412150499E+15
Volume
3.7705477853918E+22
Surface area
5.4377648601995E+15
Circumference
130702877.30862
Perimeter
83208036
Area
432723578436081
Diagonal
29418483.252407
Surface area
2596341470616486
Volume
9.0015197731396E+21
Space diagonal
36030136.487505
Perimeter
62406027
Area
1.8737480587108E+14
Altitude
18015068.243753
Surface area
1.8737480587108E+14
Volume
1.060839278762E+21
Height
9806161.0841357