20806449 is an odd 8-digits composite number following 20806448
and preceding 20806450 . In scientific notation, it is written as 2.0806449 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13870964 positive integers (up to 20806449) that are relatively prime to 20806449.
20806449 has 4 divisors, whose sum is 27741936
The reverse of 20806449 is 94460802
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eight hundred six thousand four hundred forty-nine
Scientific notation
2.0806449 × 10^7
Engineering notation
2.0806449 × 10^6
Prime Factorization
3 × 6935483
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20806449
Product of the distinct prime numbers
The prime factorization of 20806449 is 3 × 6935483.
Since it has a total of 2 prime factors.
9 , 4 , 51 , 38 , 147 , 738 , 4702 , 527 , 69367 , 17898 , 925781 , 773685 , 7538763 , 6933972 , 99958058 , 5897823 , 316216198 , 930717993 , 3153133182 , 3004990985
n×2
41612898
n×3
62419347
n×4
83225796
n×5
104032245
n÷2
10403224.5
n÷3
6935483
n÷3
5201612.25
n÷5
4161289.8
n2
432908319989601
n3
9.0072848815393E+21
n4
1.8740961351622E+29
n5
3.8993285657349E+36
2 √n
4561.4086639984
3 √n
275.04219297508
4 √n
67.538201515871
5 √n
29.08302611387
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
-20806448
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 20806449 can be divided by 4 positive divisors.
The sum of these divisors (counting 20806449) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111101100110001
3
Ternary
1110011002002020
4
Quaternary
1033113230301
5
Quinary
20311301244
6
Senary
2021542053
8
Octal
117275461
10
Decimal
20806449
12
Duodecimal
6b74929
16
Hexadecimal
13d7b31
20
Vigesimal
6a0g29
36
Base36
cdycx
md5
83a0f34fe2a04e5828f5a8f2713de9cf
sha1
bd9bc54c09b83603cdffc3f67c896256e8fa81a8
sha256
544f4863829212bfcbb67e3748b337b612699da84d81118c2a71a5435e86bdab
sha512
13971d1c958c3511509fab9b954632e85fa1ab2942e9c1f95c87b9c02db086bea0700ed049dd8ec59389918e3e7b139564d1d59eccb32841520888730183c9a3
ripemd-160
899d87db7aff1c737d71a19c8460234b339dfed0
Diameter
41612898
Circumference
130730774.65138
Area
1.3600215977572E+15
Volume
3.7729626683512E+22
Surface area
5.4400863910289E+15
Circumference
130730774.65138
Perimeter
83225796
Area
432908319989601
Diagonal
29424762.360624
Surface area
2597449919937606
Volume
9.0072848815393E+21
Space diagonal
36037826.793091
Perimeter
62419347
Area
1.8745480131032E+14
Altitude
18018913.396545
Surface area
1.8745480131032E+14
Volume
1.0615187033026E+21
Height
9808254.120208