66709905 is an odd 8-digits composite number following 66709904
and preceding 66709906 . In scientific notation, it is written as 6.6709905 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 34994880 positive integers (up to 66709905) that are relatively prime to 66709905.
66709905 has 8 divisors, whose sum is 72324736
The reverse of 66709905 is 50990766
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-six million seven hundred nine thousand nine hundred five
Scientific notation
6.6709905 × 10^7
Engineering notation
6.6709905 × 10^6
Prime Factorization
15 × 61 × 72907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66709905
Product of the distinct prime numbers
The prime factorization of 66709905 is 15 × 61 × 72907.
Since it has a total of 3 prime factors.
5 , 5 , 4 , 93 , 349 , 308 , 3529 , 8407 , 27450 , 55087 , 144981 , 261069 , 2444632 , 5245982 , 40430925 , 43923240 , 489477875 , 774208502 , 5890473840 , 6248068866
n×2
133419810
n×3
200129715
n×4
266839620
n×5
333549525
n÷2
33354952.5
n÷3
22236635
n÷3
16677476.25
n÷5
13341981
n2
4450211425109025
n3
2.9687318139894E+23
n4
1.9804381728171E+31
n5
1.32114842367E+39
2 √n
8167.6131764427
3 √n
405.56777551914
4 √n
90.374848140634
5 √n
36.714537732367
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
-66709904
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 66709905 can be divided by 8 positive divisors.
The sum of these divisors (counting 66709905) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111110011110100110010001
3
Ternary
11122112012210020
4
Quaternary
3332132212101
5
Quinary
114034204110
6
Senary
10341454053
8
Octal
376364621
10
Decimal
66709905
12
Duodecimal
1a411329
16
Hexadecimal
3f9e991
20
Vigesimal
10gief5
36
Base36
13ptox
md5
f4ee05d3f89a1c41502818e64753814a
sha1
9b04b4941df6ec7a46132621a710092e4dabe38f
sha256
103c7666a5a13ee1a7b48a66549ff8ccad71a3629fe0a2e655a997ebca8832be
sha512
ba417058285be3d758eecd8daf1d700d283b24ce909cbfaa296b243851e6466ed0e2a5ad1c52a81b3bde6e460a7f86389d20578f8d43d089fb633b54e4e432c8
ripemd-160
1aef63b6071fe29531156d052b0c0d3fc39caeed
Diameter
133419810
Circumference
419150694.93935
Area
1.3980751520044E+16
Volume
1.2435394743076E+24
Surface area
5.5923006080176E+16
Circumference
419150694.93935
Perimeter
266839620
Area
4450211425109025
Diagonal
94342052.395621
Surface area
26701268550654150
Volume
2.9687318139894E+23
Space diagonal
115544944.82809
Perimeter
200129715
Area
1.9269980731781E+15
Altitude
57772472.414047
Surface area
1.9269980731781E+15
Volume
3.4986839953269E+22
Height
31447350.79854