668209215 is an odd 9-digits composite number following 668209214
and preceding 668209216 . In scientific notation, it is written as 6.68209215 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 355434912 positive integers (up to 668209215) that are relatively prime to 668209215.
668209215 has 16 divisors, whose sum is 1071964800
The reverse of 668209215 is 512902866
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
six hundred sixty-eight million two hundred nine thousand two hundred fifteen
Scientific notation
6.68209215 × 10^8
Engineering notation
6.68209215 × 10^6
Prime Factorization
3 × 5 × 379 × 117539
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
668209215
Product of the distinct prime numbers
The prime factorization of 668209215 is 3 × 5 × 379 × 117539.
Since it has a total of 4 prime factors.
3 , 5 , 15 , 37 , 13 , 359 , 2953 , 6447 , 73998 , 38080 , 799130 , 352793 , 1192240 , 581341 , 44692878 , 23615631 , 824481173 , 824596781 , 6276941937 , 5051666625
n×2
1336418430
n×3
2004627645
n×4
2672836860
n×5
3341046075
n÷2
334104607.5
n÷3
222736405
n÷3
167052303.75
n÷5
133641843
n2
446503555010916225
n3
2.9835778998855E+26
n4
1.9936542463739E+35
n5
1.3321781389509E+44
2 √n
25849.743035473
3 √n
874.2537157868
4 √n
160.77855278448
5 √n
58.207975167244
1 , 3 , 5 , 15 , 379 , 1137 , 1895 , 5685 , 117539 , 352617 , 587695 , 1763085 , 44547281 , 133641843 , 222736405 , 668209215
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-668209214
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 668209215 can be divided by 16 positive divisors.
The sum of these divisors (counting 668209215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111110101000001000000111111
3
Ternary
1201120100112201110
4
Quaternary
213311001000333
5
Quinary
2332030143330
6
Senary
150150013103
8
Octal
4765010077
10
Decimal
668209215
12
Duodecimal
167947193
16
Hexadecimal
27d4103f
20
Vigesimal
a8g630f
36
Base36
b1u1j3
md5
c10e59e1a81bafcd5d9d7894e2971e28
sha1
872b312fc89a52a72a057067c33e488e9c7d0606
sha256
dd757a09c1ffdc19f744164ec31693baf067fd7820864d8979c36055b76ec5ff
sha512
c2ea2f3212ce4d26049fd5f2448b58866338b8be8f404c2263451c69fb802d4607f46a71fe07ac444858a812874bc18f383bde090c35f2c98bec3d654e35a8d6
ripemd-160
327c7adee03df690988a14dad4904416e614762c
Diameter
1336418430
Circumference
4198482321.81
Area
1.402732288224E+18
Volume
1.2497581882258E+27
Surface area
5.6109291528961E+18
Circumference
4198482321.81
Perimeter
2672836860
Area
446503555010916225
Diagonal
944990534.35568
Surface area
2679021330065497350
Volume
2.9835778998855E+26
Space diagonal
1157372310.4657
Perimeter
2004627645
Area
1.9334171075976E+17
Altitude
578686155.23286
Surface area
1.9334171075976E+17
Volume
3.5161802753456E+25
Height
314996844.78523