66871209 is an odd 8-digits composite number following 66871208
and preceding 66871210 . In scientific notation, it is written as 6.6871209 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 44016336 positive integers (up to 66871209) that are relatively prime to 66871209.
66871209 has 8 divisors, whose sum is 90290560
The reverse of 66871209 is 90217866
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-six million eight hundred seventy-one thousand two hundred nine
Scientific notation
6.6871209 × 10^7
Engineering notation
6.6871209 × 10^6
Prime Factorization
3 × 79 × 282157
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66871209
Product of the distinct prime numbers
The prime factorization of 66871209 is 3 × 79 × 282157.
Since it has a total of 3 prime factors.
3 , 4 , 78 , 74 , 575 , 492 , 559 , 4704 , 33312 , 41914 , 116577 , 85384 , 4390487 , 6626630 , 78942516 , 54991208 , 669504425 , 974684805 , 4407207723 , 2736403152
n×2
133742418
n×3
200613627
n×4
267484836
n×5
334356045
n÷2
33435604.5
n÷3
22290403
n÷3
16717802.25
n÷5
13374241.8
n2
4471758593121681
n3
2.9903190347819E+23
n4
1.9996624915158E+31
n5
1.3371984839961E+39
2 √n
8177.4818251097
3 √n
405.89439891476
4 √n
90.429430082854
5 √n
36.73227567445
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
-66871208
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 66871209 can be divided by 8 positive divisors.
The sum of these divisors (counting 66871209) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111000101111110101001
3
Ternary
11122211102001110
4
Quaternary
3333011332221
5
Quinary
114104334314
6
Senary
10345140533
8
Octal
377057651
10
Decimal
66871209
12
Duodecimal
1a48a749
16
Hexadecimal
3fc5fa9
20
Vigesimal
10hii09
36
Base36
13ta5l
md5
75666e3122dd8d0c16fa21a18675334e
sha1
7a5b31b3ed2a6c555647fe243988d12eb21b5c81
sha256
7ddd16610a885e0c489b18d92b10a4f3b56781153dde2568d708acd2eb8618da
sha512
868a53a9865ed31c1e9194a6a694f8664ff28241cd438338175feb886e34dc0c144380bd42db67c1eaf5b93d6d42dd9c1bfffb196c7890114af194eccd7e2467
ripemd-160
6bfbda24062bb7983556c3a931e7769009196095
Diameter
133742418
Circumference
420164197.86214
Area
1.4048443944778E+16
Volume
1.2525819082081E+24
Surface area
5.6193775779112E+16
Circumference
420164197.86214
Perimeter
267484836
Area
4471758593121681
Diagonal
94570170.700086
Surface area
26830551558730086
Volume
2.9903190347819E+23
Space diagonal
115824331.55156
Perimeter
200613627
Area
1.9363282706174E+15
Altitude
57912165.775779
Surface area
1.9363282706174E+15
Volume
3.5241247790091E+22
Height
31523390.233362