66820749 is an odd 8-digits composite number following 66820748
and preceding 66820750 . In scientific notation, it is written as 6.6820749 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 44418096 positive integers (up to 66820749) that are relatively prime to 66820749.
66820749 has 8 divisors, whose sum is 89352480
The reverse of 66820749 is 94702866
Previous prime number is 347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-six million eight hundred twenty thousand seven hundred forty-nine
Scientific notation
6.6820749 × 10^7
Engineering notation
6.6820749 × 10^6
Prime Factorization
3 × 347 × 64189
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66820749
Product of the distinct prime numbers
The prime factorization of 66820749 is 3 × 347 × 64189.
Since it has a total of 3 prime factors.
2 , 10 , 65 , 33 , 912 , 45 , 2130 , 9335 , 19126 , 67983 , 750936 , 92097 , 467945 , 4941679 , 80920226 , 69192449 , 237742911 , 607137371 , 7692671666 , 4157145731
n×2
133641498
n×3
200462247
n×4
267282996
n×5
334103745
n÷2
33410374.5
n÷3
22273583
n÷3
16705187.25
n÷5
13364149.8
n2
4465012496921001
n3
2.9835547933862E+23
n4
1.9936336597661E+31
n5
1.3321609437718E+39
2 √n
8174.3959409855
3 √n
405.79227930557
4 √n
90.412366084433
5 √n
36.726730476856
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
-66820748
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 66820749 can be divided by 8 positive divisors.
The sum of these divisors (counting 66820749) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111110111001101010001101
3
Ternary
11122201211211120
4
Quaternary
3332321222031
5
Quinary
114101230444
6
Senary
10344111153
8
Octal
376715215
10
Decimal
66820749
12
Duodecimal
1a4654b9
16
Hexadecimal
3fb9a8d
20
Vigesimal
10hcbh9
36
Base36
13s77x
md5
ea43c65ade96f476be8d9e56738b7dac
sha1
62a740f6b82e452d985032504e855568a549561f
sha256
b8cb88f26c451c66c7494c0b134731487260d130f657f12471d3e3f3b827200b
sha512
e9500d98883b1be3496d3c7b7037ad85d88ec284c703154572f5d3ce8e6d5a139296a965264aa1f46e12bfa2058ba580bc4f72e1ba751ba704afe9a0d3450acb
ripemd-160
6bd18fb8b57e5c60231ea4e42fa1e1ae1a122168
Diameter
133641498
Circumference
419847148.33154
Area
1.4027250458514E+16
Volume
1.249748509398E+24
Surface area
5.6109001834055E+16
Circumference
419847148.33154
Perimeter
267282996
Area
4465012496921001
Diagonal
94498809.483728
Surface area
26790074981526006
Volume
2.9835547933862E+23
Space diagonal
115736932.26781
Perimeter
200462247
Area
1.9334071252743E+15
Altitude
57868466.133904
Surface area
1.9334071252743E+15
Volume
3.516153044075E+22
Height
31499603.161243