20778209 is an odd 8-digits composite number following 20778208
and preceding 20778210 . In scientific notation, it is written as 2.0778209 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20493504 positive integers (up to 20778209) that are relatively prime to 20778209.
20778209 has 4 divisors, whose sum is 21062916
The reverse of 20778209 is 90287702
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred seventy-eight thousand two hundred nine
Scientific notation
2.0778209 × 10^7
Engineering notation
2.0778209 × 10^6
Prime Factorization
73 × 284633
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20778209
Product of the distinct prime numbers
The prime factorization of 20778209 is 73 × 284633.
Since it has a total of 2 prime factors.
8 , 3 , 34 , 9 , 465 , 336 , 3104 , 5580 , 35437 , 87662 , 462256 , 975130 , 8477997 , 122770 , 59641691 , 11308579 , 235890375 , 454545186 , 4034873429 , 7659485447
n×2
41556418
n×3
62334627
n×4
83112836
n×5
103891045
n÷2
10389104.5
n÷3
6926069.6666667
n÷3
5194552.25
n÷5
4155641.8
n2
431733969247681
n3
8.9706586454279E+21
n4
1.8639422020236E+29
n5
3.8729380637566E+36
2 √n
4558.3120779517
3 √n
274.91770099274
4 √n
67.515272923626
5 √n
29.075127111842
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
-20778208
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 20778209 can be divided by 4 positive divisors.
The sum of these divisors (counting 20778209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010000110011100001
3
Ternary
1110002122100022
4
Quaternary
1033100303201
5
Quinary
20304400314
6
Senary
2021203225
8
Octal
117206341
10
Decimal
20778209
12
Duodecimal
6b60515
16
Hexadecimal
13d0ce1
20
Vigesimal
69h5a9
36
Base36
cdckh
md5
cf10047f0317a644f2a55f95e52d7f6d
sha1
285dacfeb91703f32643d1c14642a7477d28a4ee
sha256
d10ea8306347ef43f3ab96876604aca83a952f5e82d87c79ee724af6c943d9e6
sha512
8a3c73aff590b07483ed7a6ce1c9f1559e658ab79a8c11a34631db39851afeefc9ef576c6e90fd82b760c19fc143c423e87e2f63aa1739bc7aabe37e26a3985d
ripemd-160
2b3e636db62f9967f0b7247bc588ff74627a01f8
Diameter
41556418
Circumference
130553337.49831
Area
1.3563322660937E+15
Volume
3.7576207064451E+22
Surface area
5.4253290643747E+15
Circumference
130553337.49831
Perimeter
83112836
Area
431733969247681
Diagonal
29384824.969623
Surface area
2590403815486086
Volume
8.9706586454279E+21
Space diagonal
35988913.678285
Perimeter
62334627
Area
1.8694629252259E+14
Altitude
17994456.839142
Surface area
1.8694629252259E+14
Volume
1.057202259982E+21
Height
9794941.6565409