66509989 is an odd 8-digits composite number following 66509988
and preceding 66509990 . In scientific notation, it is written as 6.6509989 × 10^7.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 52623216 positive integers (up to 66509989) that are relatively prime to 66509989.
66509989 has 8 divisors, whose sum is 81858560
The reverse of 66509989 is 98990566
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
sixty-six million five hundred nine thousand nine hundred eighty-nine
Scientific notation
6.6509989 × 10^7
Engineering notation
6.6509989 × 10^6
Prime Factorization
7 × 13 × 730879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66509989
Product of the distinct prime numbers
The prime factorization of 66509989 is 7 × 13 × 730879.
Since it has a total of 3 prime factors.
2 , 4 , 95 , 69 , 244 , 409 , 5927 , 7469 , 68730 , 62254 , 734699 , 213211 , 8687983 , 9763357 , 24468158 , 9276576 , 940558652 , 709198866 , 2129739758 , 8731112720
n×2
133019978
n×3
199529967
n×4
266039956
n×5
332549945
n÷2
33254994.5
n÷3
22169996.333333
n÷3
16627497.25
n÷5
13301997.8
n2
4423578636780121
n3
2.9421216647288E+23
n4
1.9568047955777E+31
n5
1.3014706542902E+39
2 √n
8155.3656570383
3 √n
405.16223546514
4 √n
90.307063162514
5 √n
36.692506108244
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66509988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66509989 can be divided by 8 positive divisors.
The sum of these divisors (counting 66509989) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101101101110010100101
3
Ternary
11122011001112221
4
Quaternary
3331231302211
5
Quinary
114011304424
6
Senary
10333312341
8
Octal
375556245
10
Decimal
66509989
12
Duodecimal
1a3356b1
16
Hexadecimal
3f6dca5
20
Vigesimal
10fdej9
36
Base36
13ljfp
md5
73e0da38ed74e57600b6bcb4a2c482f2
sha1
85d3ec0fb819cef7824f07b523827c9a875be565
sha256
a83bafd31fe17a6f3ac10949a8731b7a839e90430a79f7e1f593b712d0791cf8
sha512
5d6dcb141c7ad24b61baf6711a7a43b62d5064202971d4fa58e3f8d7c362c72a4a172428e4974d9cc69880ef615bad1f97246acdc9682cb57e85e8bdfeef717e
ripemd-160
4f16366581d086b9a5ecf0fec0fdfe5f5173abaa
Diameter
133019978
Circumference
417894585.66548
Area
1.3897082147885E+16
Volume
1.2323930410506E+24
Surface area
5.5588328591541E+16
Circumference
417894585.66548
Perimeter
266039956
Area
4423578636780121
Diagonal
94059328.477085
Surface area
26541471820680726
Volume
2.9421216647288E+23
Space diagonal
115198680.15885
Perimeter
199529967
Area
1.9154657375449E+15
Altitude
57599340.079424
Surface area
1.9154657375449E+15
Volume
3.467323633676E+22
Height
31353109.492362