128478766 is an even 9-digits composite number following 128478765
and preceding 128478767 . In scientific notation, it is written as 1.28478766 × 10^8.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 59123808 positive integers (up to 128478766) that are relatively prime to 128478766.
128478766 has 16 divisors, whose sum is 208152000
The reverse of 128478766 is 667874821
Previous prime number is 349
Is Prime? no
Number parity even
Number length 9
Sum of Digits 49
Digital Root 4
Name
one hundred twenty-eight million four hundred seventy-eight thousand seven hundred sixty-six
Scientific notation
1.28478766 × 10^8
Engineering notation
1.28478766 × 10^6
Prime Factorization
2 × 13 × 349 × 14159
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128478766
Product of the distinct prime numbers
The prime factorization of 128478766 is 2 × 13 × 349 × 14159.
Since it has a total of 4 prime factors.
8 , 8 , 86 , 77 , 414 , 385 , 2000 , 1340 , 23877 , 84708 , 721587 , 178371 , 2590198 , 4129504 , 60436248 , 35095635 , 35488749 , 649545002 , 6889168743 , 8664441948
n×2
256957532
n×3
385436298
n×4
513915064
n×5
642393830
n÷2
64239383
n÷3
42826255.333333
n÷3
32119691.5
n÷5
25695753.2
n2
16506793312882756
n3
2.1207724354562E+24
n4
2.7247422547423E+32
n5
3.5007152255735E+40
2 √n
11334.84741847
3 √n
504.59597917618
4 √n
106.46524042367
5 √n
41.856823937904
1 , 2 , 13 , 26 , 349 , 698 , 4537 , 9074 , 14159 , 28318 , 184067 , 368134 , 4941491 , 9882982 , 64239383 , 128478766
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
-128478765
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 128478766 can be divided by 16 positive divisors.
The sum of these divisors (counting 128478766) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101010000110111000101110
3
Ternary
22221202101201211
4
Quaternary
13222012320232
5
Quinary
230342310031
6
Senary
20425425034
8
Octal
752067056
10
Decimal
128478766
12
Duodecimal
3703b17a
16
Hexadecimal
7a86e2e
20
Vigesimal
202jgi6
36
Base36
24hqum
md5
2d16608e3aa9c6d6a6212e53e09b7f69
sha1
6c4d13f295777bc0c6beb16411b254b0a2cb1926
sha256
3a544d71b14abd3c58d222b01b6218ad4ae3d7c21ace54d95b7d1ac003055b78
sha512
107d46c03385d945de848a7df5480a0bd7c2b2af4f6f7a45483fb2b4646095e5d9acbac6faec0576a652625f75df8c055b7db8adba1e7cd7888d694533bbef18
ripemd-160
5fb8d596fd6c724cb91358385e49383eecf2d9f4
Diameter
256957532
Circumference
807255894.81576
Area
5.1857620606078E+16
Volume
8.88347080422E+24
Surface area
2.0743048242431E+17
Circumference
807255894.81576
Perimeter
513915064
Area
16506793312882756
Diagonal
181696413.35416
Surface area
99040759877296536
Volume
2.1207724354562E+24
Space diagonal
222531750.40575
Perimeter
385436298
Area
7.1476511719878E+15
Altitude
111265875.20288
Surface area
7.1476511719878E+15
Volume
2.4993542841077E+23
Height
60565471.118053