20680018 is an even 8-digits composite number following 20680017
and preceding 20680019 . In scientific notation, it is written as 2.0680018 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 9763632 positive integers (up to 20680018) that are relatively prime to 20680018.
20680018 has 16 divisors, whose sum is 32760000
The reverse of 20680018 is 81008602
Previous prime number is 389
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million six hundred eighty thousand eighteen
Scientific notation
2.0680018 × 10^7
Engineering notation
2.0680018 × 10^6
Prime Factorization
2 × 19 × 389 × 1399
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20680018
Product of the distinct prime numbers
The prime factorization of 20680018 is 2 × 19 × 389 × 1399.
Since it has a total of 4 prime factors.
1 , 8 , 25 , 48 , 851 , 154 , 7329 , 2842 , 83403 , 82719 , 423637 , 401551 , 3016588 , 619148 , 54870779 , 70693488 , 368741677 , 528426625 , 4530874338 , 9294471036
n×2
41360036
n×3
62040054
n×4
82720072
n×5
103400090
n÷2
10340009
n÷3
6893339.3333333
n÷3
5170004.5
n÷5
4136003.6
n2
427663144480324
n3
8.8440815257897E+21
n4
1.828957651468E+29
n5
3.7822877153596E+36
2 √n
4547.5287794581
3 √n
274.48396007593
4 √n
67.435367422875
5 √n
29.047595116984
1 , 2 , 19 , 38 , 389 , 778 , 1399 , 2798 , 7391 , 14782 , 26581 , 53162 , 544211 , 1088422 , 10340009 , 20680018
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20680017
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20680018 can be divided by 16 positive divisors.
The sum of these divisors (counting 20680018) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111000110101010010
3
Ternary
1102220122122121
4
Quaternary
1032320311102
5
Quinary
20243230033
6
Senary
2015124454
8
Octal
116706522
10
Decimal
20680018
12
Duodecimal
6b1372a
16
Hexadecimal
13b8d52
20
Vigesimal
69500i
36
Base36
cb8sy
md5
1506034aead48bc9bf56cddca30818e8
sha1
a42a044d5ae4229d82709c12727bfe0444389515
sha256
c11ba314784a2c0be2f27a67a47ba6bd2075bc4870b4f07282b05ac38b739712
sha512
ad223c6a998969e22c5f12a92d1bcec56757dc6f22878de1efd57a5e2cc5079519dce96c555843a5ba405fed4ca879d0a01bbc714f699dc19cba9e5777d4e7d7
ripemd-160
792b96d4dd549b54cd35b0123c45f3eed90b60bd
Diameter
41360036
Circumference
129936385.24981
Area
1.3435433929105E+15
Volume
3.704600206556E+22
Surface area
5.374173571642E+15
Circumference
129936385.24981
Perimeter
82720072
Area
427663144480324
Diagonal
29245961.92572
Surface area
2565978866881944
Volume
8.8440815257897E+21
Space diagonal
35818841.877439
Perimeter
62040054
Area
1.8518357369115E+14
Altitude
17909420.938719
Surface area
1.8518357369115E+14
Volume
1.0422850033754E+21
Height
9748653.9752399