128211816 is an even 9-digits composite number following 128211815
and preceding 128211817 . In scientific notation, it is written as 1.28211816 × 10^8.
The sum of its digits is 30. It has a total of 5 prime factors and 16 positive divisors.
There are 42737264 positive integers (up to 128211816) that are relatively prime to 128211816.
128211816 has 16 divisors, whose sum is 320529600
The reverse of 128211816 is 618112821
Previous prime number is 3
Is Prime? no
Number parity even
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred twenty-eight million two hundred eleven thousand eight hundred sixteen
Scientific notation
1.28211816 × 10^8
Engineering notation
1.28211816 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 5342159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
32052954
Product of the distinct prime numbers
The prime factorization of 128211816 is 2 × 2 × 2 × 3 × 5342159.
Since it has a total of 5 prime factors.
9 , 2 , 75 , 62 , 10 , 341 , 7180 , 2916 , 34856 , 79017 , 612117 , 72201 , 6633875 , 3769078 , 22840246 , 42013662 , 891854699 , 436302468 , 4745121342 , 6992038620
n×2
256423632
n×3
384635448
n×4
512847264
n×5
641059080
n÷2
64105908
n÷3
42737272
n÷3
32052954
n÷5
25642363.2
n2
16438269762017856
n3
2.1075804180862E+24
n4
2.7021671276887E+32
n5
3.4644975457647E+40
2 √n
11323.06566262
3 √n
504.24625783805
4 √n
106.40989457104
5 √n
41.839415649126
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 5342159 , 10684318 , 16026477 , 21368636 , 32052954 , 42737272 , 64105908 , 128211816
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
-128211815
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 128211816 can be divided by 16 positive divisors.
The sum of these divisors (counting 128211816) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101001000101101101101000
3
Ternary
22221020211112210
4
Quaternary
13221011231220
5
Quinary
230310234231
6
Senary
20420005120
8
Octal
751055550
10
Decimal
128211816
12
Duodecimal
36b307a0
16
Hexadecimal
7a45b68
20
Vigesimal
20169ag
36
Base36
24c0vc
md5
159948ebac78555f8956a44dfaa41f44
sha1
0e58a14164ef65b3e768e57ee9302009f71d37c5
sha256
8cfcd7db078b70168d8d5a68c1b3338dc7d75a24801037c37a6b0dc69c4915fe
sha512
92ac2e47af9853a31be9339e964ccda6e93666f18eb6761044c427fef2e9f2eb01a7e7b39c33ba934a93ed4642862536a329d45b194b4fa489958207ea446cbc
ripemd-160
f8f95d945ad744c73065e4cf07b4c4afa2ab9f66
Diameter
256423632
Circumference
805578598.49801
Area
5.1642347522083E+16
Volume
8.8282122110791E+24
Surface area
2.0656939008833E+17
Circumference
805578598.49801
Perimeter
512847264
Area
16438269762017856
Diagonal
181318889.04368
Surface area
98629618572107136
Volume
2.1075804180862E+24
Space diagonal
222069379.44267
Perimeter
384635448
Area
7.1179796040845E+15
Altitude
111034689.72134
Surface area
7.1179796040845E+15
Volume
2.4838073425412E+23
Height
60439629.681228