66808518 is an even 8-digits composite number following 66808517
and preceding 66808519 . In scientific notation, it is written as 6.6808518 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 18429600 positive integers (up to 66808518) that are relatively prime to 66808518.
66808518 has 32 divisors, whose sum is 157973760
The reverse of 66808518 is 81580866
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-six million eight hundred eight thousand five hundred eighteen
Scientific notation
6.6808518 × 10^7
Engineering notation
6.6808518 × 10^6
Prime Factorization
2 × 3 × 7 × 29 × 54851
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
66808518
Product of the distinct prime numbers
The prime factorization of 66808518 is 2 × 3 × 7 × 29 × 54851.
Since it has a total of 5 prime factors.
2 , 10 , 2 , 31 , 962 , 652 , 1300 , 4339 , 59476 , 46500 , 115626 , 816450 , 6987134 , 2784985 , 90912648 , 17463246 , 138499272 , 996780910 , 2920190408 , 8850742274
n×2
133617036
n×3
200425554
n×4
267234072
n×5
334042590
n÷2
33404259
n÷3
22269506
n÷3
16702129.5
n÷5
13361703.6
n2
4463378077356324
n3
2.9819167462187E+23
n4
1.9921743861425E+31
n5
1.3309421833574E+39
2 √n
8173.6477780731
3 √n
405.7675187918
4 √n
90.408228486533
5 √n
36.725385871954
1 , 2 , 3 , 6 , 7 , 14 , 21 , 29 , 42 , 58 , 87 , 174 , 203 , 406 , 609 , 1218 , 54851 , 109702 , 164553 , 329106 , 383957 , 767914 , 1151871 , 1590679 , 2303742 , 3181358 , 4772037 , 9544074 , 11134753 , 22269506 , 33404259 , 66808518
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66808517
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66808518 can be divided by 32 positive divisors.
The sum of these divisors (counting 66808518) is 1, the average is 0.03125.
Base
System
Value
2
Binary
11111110110110101011000110
3
Ternary
11122201020001120
4
Quaternary
3332312223012
5
Quinary
114100333033
6
Senary
10343534410
8
Octal
376665306
10
Decimal
66808518
12
Duodecimal
1a45a406
16
Hexadecimal
3fb6ac6
20
Vigesimal
10hb15i
36
Base36
13rxs6
md5
2d6d913514907b3d72af57740c46ee1c
sha1
590ef98dc8991f598a7b9ca81fc466a3c236d544
sha256
e2a5c5eb3aab8ca16ecfa2a52af21a90ffe8c800cf616c29c9d295093ba16a54
sha512
c9a04561b2e654bc7fa526a1488efab3001cc68a30461cba8af26a5592fcca20310e3d5a6d2d043f90d8a2244dd6dfa630af73878c54168c1aa6c76fd6c37b0b
ripemd-160
6fa748fcdbd791c6755f14a01f07bd2229848a48
Diameter
133617036
Circumference
419770298.69204
Area
1.4022115778016E+16
Volume
1.2490623658049E+24
Surface area
5.6088463112065E+16
Circumference
419770298.69204
Perimeter
267234072
Area
4463378077356324
Diagonal
94481512.237647
Surface area
26780268464137944
Volume
2.9819167462187E+23
Space diagonal
115715747.55438
Perimeter
200425554
Area
1.9326994008426E+15
Altitude
57857873.77719
Surface area
1.9326994008426E+15
Volume
3.5142225869749E+22
Height
31493837.412549