128517818 is an even 9-digits composite number following 128517817
and preceding 128517819 . In scientific notation, it is written as 1.28517818 × 10^8.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 53923440 positive integers (up to 128517818) that are relatively prime to 128517818.
128517818 has 16 divisors, whose sum is 226479456
The reverse of 128517818 is 818715821
Previous prime number is 13
Is Prime? no
Number parity even
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred twenty-eight million five hundred seventeen thousand eight hundred eighteen
Scientific notation
1.28517818 × 10^8
Engineering notation
1.28517818 × 10^6
Prime Factorization
2 × 11 × 13 × 449363
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128517818
Product of the distinct prime numbers
The prime factorization of 128517818 is 2 × 11 × 13 × 449363.
Since it has a total of 4 prime factors.
2 , 9 , 78 , 28 , 372 , 616 , 4585 , 1138 , 18259 , 64293 , 989028 , 887274 , 1086032 , 9532595 , 24687349 , 8638895 , 647125160 , 301781653 , 2877890255 , 7173496460
n×2
257035636
n×3
385553454
n×4
514071272
n×5
642589090
n÷2
64258909
n÷3
42839272.666667
n÷3
32129454.5
n÷5
25703563.6
n2
16516829543481124
n3
2.1227068932061E+24
n4
2.7280565816841E+32
n5
3.5060387925858E+40
2 √n
11336.569939801
3 √n
504.64709913058
4 √n
106.47332971125
5 √n
41.859368162195
1 , 2 , 11 , 13 , 22 , 26 , 143 , 286 , 449363 , 898726 , 4942993 , 5841719 , 9885986 , 11683438 , 64258909 , 128517818
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
-128517817
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 128517818 can be divided by 16 positive divisors.
The sum of these divisors (counting 128517818) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101010010000011010111010
3
Ternary
22221211101022012
4
Quaternary
13222100122322
5
Quinary
230400032233
6
Senary
20430325522
8
Octal
752203272
10
Decimal
128517818
12
Duodecimal
370598a2
16
Hexadecimal
7a906ba
20
Vigesimal
2034eai
36
Base36
24ikze
md5
e3a0f35e2c0003a1893a86770bf79e74
sha1
1af68e97a3c4e9556975f0aac4a6afa1e58d8438
sha256
14da8e25b00124f3b11c18632e489a8857ff3c95fd4507299f8cd2b5492d9def
sha512
6a5d4e3043c0b9188589b3e2eb92bb69a41971aa5514bec374397f012b4540768f9e272449a0accd3e31adf4201f669938f29e2c198d224b23cffbe4c84941c3
ripemd-160
376bc1a38cf16e5bfcd4c73a8ae6de570872c2a0
Diameter
257035636
Circumference
807501265.76838
Area
5.1889150354395E+16
Volume
8.8915738418944E+24
Surface area
2.0755660141758E+17
Circumference
807501265.76838
Perimeter
514071272
Area
16516829543481124
Diagonal
181751641.2222
Surface area
99100977260886744
Volume
2.1227068932061E+24
Space diagonal
222599390.45389
Perimeter
385553454
Area
7.151996987316E+15
Altitude
111299695.22694
Surface area
7.151996987316E+15
Volume
2.5016340644291E+23
Height
60583880.407399