66705989 is an odd 8-digits composite number following 66705988
and preceding 66705990 . In scientific notation, it is written as 6.6705989 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 57176556 positive integers (up to 66705989) that are relatively prime to 66705989.
66705989 has 4 divisors, whose sum is 76235424
The reverse of 66705989 is 98950766
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
sixty-six million seven hundred five thousand nine hundred eighty-nine
Scientific notation
6.6705989 × 10^7
Engineering notation
6.6705989 × 10^6
Prime Factorization
7 × 9529427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66705989
Product of the distinct prime numbers
The prime factorization of 66705989 is 7 × 9529427.
Since it has a total of 2 prime factors.
4 , 2 , 44 , 94 , 316 , 447 , 2532 , 9100 , 3958 , 79787 , 859534 , 654240 , 6894179 , 8388306 , 11642041 , 32358590 , 806171221 , 102242816 , 3026903267 , 7079665844
n×2
133411978
n×3
200117967
n×4
266823956
n×5
333529945
n÷2
33352994.5
n÷3
22235329.666667
n÷3
16676497.25
n÷5
13341197.8
n2
4449688968468121
n3
2.9682090338406E+23
n4
1.9799731916107E+31
n5
1.3207606993988E+39
2 √n
8167.3734456066
3 √n
405.55983949382
4 √n
90.373521816994
5 √n
36.71410667942
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66705988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66705989 can be divided by 4 positive divisors.
The sum of these divisors (counting 66705989) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111110011101101001000101
3
Ternary
11122112000102012
4
Quaternary
3332131221011
5
Quinary
114034042424
6
Senary
10341424005
8
Octal
376355105
10
Decimal
66705989
12
Duodecimal
1a40b005
16
Hexadecimal
3f9da45
20
Vigesimal
10gi4j9
36
Base36
13pqo5
md5
36ee0ba0712f9528ae2bd8f1a489b44a
sha1
2e07ee2cbca3d385bba8af838b336ed04a5740bc
sha256
95b719631a0bcc8dc557e21c37700ad720540f49c86810c1e90bf74c67242558
sha512
68ef632de53cd0278645425a7e5a0e49c7ebbe7cecdfabce2f19c9db1bbc85960ffdf01a846db63e07db84d75cf3e35d28963692e3741167542ad859e646370e
ripemd-160
a68d58d287e7a33259f75577add41ecac370acba
Diameter
133411978
Circumference
419126089.98568
Area
1.3979110174099E+16
Volume
1.243320492671E+24
Surface area
5.5916440696396E+16
Circumference
419126089.98568
Perimeter
266823956
Area
4449688968468121
Diagonal
94336514.335311
Surface area
26698133810808726
Volume
2.9682090338406E+23
Space diagonal
115538162.11713
Perimeter
200117967
Area
1.9267718428164E+15
Altitude
57769081.058565
Surface area
1.9267718428164E+15
Volume
3.498067893013E+22
Height
31445504.778437