681661566 is an even 9-digits composite number following 681661565
and preceding 681661567 . In scientific notation, it is written as 6.81661566 × 10^8.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 225964080 positive integers (up to 681661566) that are relatively prime to 681661566.
681661566 has 24 divisors, whose sum is 1485100344
The reverse of 681661566 is 665166186
Previous prime number is 181
Is Prime? no
Number parity even
Number length 9
Sum of Digits 45
Digital Root 9
Name
six hundred eighty-one million six hundred sixty-one thousand five hundred sixty-six
Scientific notation
6.81661566 × 10^8
Engineering notation
6.81661566 × 10^6
Prime Factorization
2 × 3 × 3 × 181 × 209227
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
227220522
Product of the distinct prime numbers
The prime factorization of 681661566 is 2 × 3 × 3 × 181 × 209227.
Since it has a total of 5 prime factors.
6 , 10 , 85 , 57 , 490 , 972 , 3044 , 7762 , 64636 , 62211 , 733100 , 778898 , 6924392 , 3138091 , 47647780 , 70690527 , 760995807 , 181953990 , 979553061 , 7046419415
n×2
1363323132
n×3
2044984698
n×4
2726646264
n×5
3408307830
n÷2
340830783
n÷3
227220522
n÷3
170415391.5
n÷5
136332313.2
n2
464662490561572356
n3
3.1674256097766E+26
n4
2.1591123013488E+35
n5
1.4717838725073E+44
2 √n
26108.64925652
3 √n
880.08158937045
4 √n
161.58171077359
5 √n
58.440478283005
1 , 2 , 3 , 6 , 9 , 18 , 181 , 362 , 543 , 1086 , 1629 , 3258 , 209227 , 418454 , 627681 , 1255362 , 1883043 , 3766086 , 37870087 , 75740174 , 113610261 , 227220522 , 340830783 , 681661566
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-681661565
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 681661566 can be divided by 24 positive divisors.
The sum of these divisors (counting 681661566) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
101000101000010101010001111110
3
Ternary
1202111122222212200
4
Quaternary
220220111101332
5
Quinary
2344001132231
6
Senary
151350212330
8
Octal
5050252176
10
Decimal
681661566
12
Duodecimal
1703540a6
16
Hexadecimal
28a1547e
20
Vigesimal
ad07di6
36
Base36
b9udfi
md5
18bcfc00849f62f549421e101cc04a85
sha1
6534cb81abb35650b0a3d510088efba3143d1a8a
sha256
0b15807fcf890e7c83e0595fc082b89335b5a148b0e0786a99eece5aa67a8329
sha512
a4b7ca0260a5d5f62bcfc7dfd1fabc270baaf4d3a9c56c131790d14588d2aa2d453dca6c6955719aabadfcefbf772102a7119411003565adab10a03e7eb277df
ripemd-160
05c380db6da26e422a6d254535514ab787be0f4f
Diameter
1363323132
Circumference
4283005935.9602
Area
1.459780266747E+18
Volume
1.3267681368622E+27
Surface area
5.8391210669879E+18
Circumference
4283005935.9602
Perimeter
2726646264
Area
464662490561572356
Diagonal
964015031.58568
Surface area
2787974943369434136
Volume
3.1674256097766E+26
Space diagonal
1180672465.879
Perimeter
2044984698
Area
2.0120476050603E+17
Altitude
590336232.93948
Surface area
2.0120476050603E+17
Volume
3.732846879295E+25
Height
321338343.86189