66403985 is an odd 8-digits composite number following 66403984
and preceding 66403986 . In scientific notation, it is written as 6.6403985 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 53123184 positive integers (up to 66403985) that are relatively prime to 66403985.
66403985 has 4 divisors, whose sum is 79684788
The reverse of 66403985 is 58930466
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-six million four hundred three thousand nine hundred eighty-five
Scientific notation
6.6403985 × 10^7
Engineering notation
6.6403985 × 10^6
Prime Factorization
5 × 13280797
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66403985
Product of the distinct prime numbers
The prime factorization of 66403985 is 5 × 13280797.
Since it has a total of 2 prime factors.
2 , 10 , 18 , 97 , 252 , 284 , 9749 , 9333 , 91094 , 81885 , 756568 , 654549 , 5242373 , 9989619 , 47675577 , 35869787 , 878364657 , 431398840 , 730193984 , 8497713273
n×2
132807970
n×3
199211955
n×4
265615940
n×5
332019925
n÷2
33201992.5
n÷3
22134661.666667
n÷3
16600996.25
n÷5
13280797
n2
4409489223880225
n3
2.928076562802E+23
n4
1.9443595215516E+31
n5
1.2911322050372E+39
2 √n
8148.8640312623
3 √n
404.94687104727
4 √n
90.271058658145
5 √n
36.680802499429
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
-66403984
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 66403985 can be divided by 4 positive divisors.
The sum of these divisors (counting 66403985) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101010011111010010001
3
Ternary
11121221200010212
4
Quaternary
3331103322101
5
Quinary
113444411420
6
Senary
10331133505
8
Octal
375237221
10
Decimal
66403985
12
Duodecimal
1a2a4295
16
Hexadecimal
3f53e91
20
Vigesimal
10f09j5
36
Base36
13j9n5
md5
1b83313fade0efee213757eb83a2e443
sha1
f21d8f42440ade21e2c9b2411bfea75724ed4661
sha256
b710d571be552fd965a89b802281ca29922036d4189d2f70905bc5156d4ea3a1
sha512
d4d0880e1191a11006fc4d22f1c923010492c8c2cbf2107abd660518874d929b155e507297e05b9de72044b39eda00b7c4edf786d5f990e7c11ffc6664a2b0ce
ripemd-160
0192445691cbfa7cc250c71d9b74f4aaac105d33
Diameter
132807970
Circumference
417228542.89017
Area
1.3852818951825E+16
Volume
1.226509842513E+24
Surface area
5.5411275807302E+16
Circumference
417228542.89017
Perimeter
265615940
Area
4409489223880225
Diagonal
93909416.18262
Surface area
26456935343281350
Volume
2.928076562802E+23
Space diagonal
115015075.84504
Perimeter
199211955
Area
1.909364842797E+15
Altitude
57507537.922521
Surface area
1.909364842797E+15
Volume
3.4507713223179E+22
Height
31303138.72754