66509968 is an even 8-digits composite number following 66509967
and preceding 66509969 . In scientific notation, it is written as 6.6509968 × 10^7.
The sum of its digits is 49. It has a total of 6 prime factors and 20 positive divisors.
There are 28504224 positive integers (up to 66509968) that are relatively prime to 66509968.
66509968 has 20 divisors, whose sum is 147272320
The reverse of 66509968 is 86990566
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
sixty-six million five hundred nine thousand nine hundred sixty-eight
Scientific notation
6.6509968 × 10^7
Engineering notation
6.6509968 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 7 × 593839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8313746
Product of the distinct prime numbers
The prime factorization of 66509968 is 2 × 2 × 2 × 2 × 7 × 593839.
Since it has a total of 6 prime factors.
1 , 6 , 64 , 90 , 737 , 871 , 6280 , 3249 , 32198 , 19162 , 620985 , 157087 , 2598307 , 9621804 , 44269077 , 77113087 , 887903870 , 662108662 , 5504979319 , 8401026312
n×2
133019936
n×3
199529904
n×4
266039872
n×5
332549840
n÷2
33254984
n÷3
22169989.333333
n÷3
16627492
n÷5
13301993.6
n2
4423575843361024
n3
2.9421188778751E+23
n4
1.9568023241967E+31
n5
1.3014685996465E+39
2 √n
8155.3643695423
3 √n
405.16219282289
4 √n
90.307056034079
5 √n
36.69250379117
1 , 2 , 4 , 7 , 8 , 14 , 16 , 28 , 56 , 112 , 593839 , 1187678 , 2375356 , 4156873 , 4750712 , 8313746 , 9501424 , 16627492 , 33254984 , 66509968
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66509967
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66509968 can be divided by 20 positive divisors.
The sum of these divisors (counting 66509968) is 1, the average is 0.05.
Base
System
Value
2
Binary
11111101101101110010010000
3
Ternary
11122011001112011
4
Quaternary
3331231302100
5
Quinary
114011304333
6
Senary
10333312304
8
Octal
375556220
10
Decimal
66509968
12
Duodecimal
1a335694
16
Hexadecimal
3f6dc90
20
Vigesimal
10fdei8
36
Base36
13ljf4
md5
bb7b2224b13773ba334e5c1a03a818ae
sha1
ab6f400b5435ce1e39d75cd29aa9012c6c4a2b63
sha256
28304dc10e1a8a21e66011cc6090bc7fca439787b5123ae5cd9bb5a4107d5690
sha512
442f32432857da89187e8dee5288454f144530749a19ca55c1a6128e9f682b577cb1ad8dbe9e41782c3ea13cdd3e94e14528f9102e3a64d004727e0e41301948
ripemd-160
d8cb1b1845c0ec920fa1ad0c8480cd3dbf4ee9b2
Diameter
133019936
Circumference
417894453.71858
Area
1.38970733721E+16
Volume
1.2323918736961E+24
Surface area
5.5588293488401E+16
Circumference
417894453.71858
Perimeter
266039872
Area
4423575843361024
Diagonal
94059298.778601
Surface area
26541455060166144
Volume
2.9421188778751E+23
Space diagonal
115198643.78578
Perimeter
199529904
Area
1.9154645279589E+15
Altitude
57599321.89289
Surface area
1.9154645279589E+15
Volume
3.4673203493375E+22
Height
31353099.592867