66707921 is an odd 8-digits composite number following 66707920
and preceding 66707922 . In scientific notation, it is written as 6.6707921 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 55848240 positive integers (up to 66707921) that are relatively prime to 66707921.
66707921 has 8 divisors, whose sum is 78010944
The reverse of 66707921 is 12970766
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-six million seven hundred seven thousand nine hundred twenty-one
Scientific notation
6.6707921 × 10^7
Engineering notation
6.6707921 × 10^6
Prime Factorization
7 × 43 × 221621
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66707921
Product of the distinct prime numbers
The prime factorization of 66707921 is 7 × 43 × 221621.
Since it has a total of 3 prime factors.
9 , 8 , 48 , 3 , 80 , 822 , 2861 , 9680 , 88137 , 28082 , 162375 , 75365 , 1414152 , 6627912 , 35633113 , 63157524 , 506371177 , 935831807 , 2587264269 , 3576746974
n×2
133415842
n×3
200123763
n×4
266831684
n×5
333539605
n÷2
33353960.5
n÷3
22235973.666667
n÷3
16676980.25
n÷5
13341584.2
n2
4449946724142241
n3
2.9684669452829E+23
n4
1.9802025847704E+31
n5
1.3209519758886E+39
2 √n
8167.4917202284
3 √n
405.56375485463
4 √n
90.374176180082
5 √n
36.714319346478
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
-66707920
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 66707921 can be divided by 8 positive divisors.
The sum of these divisors (counting 66707921) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111110011110000111010001
3
Ternary
11122112010001202
4
Quaternary
3332132013101
5
Quinary
114034123141
6
Senary
10341440545
8
Octal
376360721
10
Decimal
66707921
12
Duodecimal
1a410155
16
Hexadecimal
3f9e1d1
20
Vigesimal
10gi9g1
36
Base36
13ps5t
md5
d3ccdcbdee319a7d6f8037032968c077
sha1
6803c49d8051d8c30a4c37f6bcb5b62ef8a1fea8
sha256
b7be784f7087896858ab1df4e83391720fec037de45eec7e708f279e542df8f3
sha512
035c4d8c6505d1475a0dd8b55af5509ace56edaf055f34bf6e524c8cfc4f2d47d02ca9d9a511e18c802f0942a5e868c25dc0bbae7064597ad5d56bd006a336d0
ripemd-160
364060d24abe96988e3e2d1326ad92204243f365
Diameter
133415842
Circumference
419138229.0997
Area
1.3979919937431E+16
Volume
1.2434285263633E+24
Surface area
5.5919679749725E+16
Circumference
419138229.0997
Perimeter
266831684
Area
4449946724142241
Diagonal
94339246.595913
Surface area
26699680344853446
Volume
2.9684669452829E+23
Space diagonal
115541508.43929
Perimeter
200123763
Area
1.9268834542973E+15
Altitude
57770754.219645
Surface area
1.9268834542973E+15
Volume
3.4983718445628E+22
Height
31446415.531971