128216638 is an even 9-digits composite number following 128216637
and preceding 128216639 . In scientific notation, it is written as 1.28216638 × 10^8.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 58027840 positive integers (up to 128216638) that are relatively prime to 128216638.
128216638 has 16 divisors, whose sum is 210717936
The reverse of 128216638 is 836612821
Previous prime number is 233
Is Prime? no
Number parity even
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred twenty-eight million two hundred sixteen thousand six hundred thirty-eight
Scientific notation
1.28216638 × 10^8
Engineering notation
1.28216638 × 10^6
Prime Factorization
2 × 11 × 233 × 25013
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128216638
Product of the distinct prime numbers
The prime factorization of 128216638 is 2 × 11 × 233 × 25013.
Since it has a total of 4 prime factors.
8 , 8 , 17 , 5 , 268 , 935 , 7947 , 684 , 42381 , 78931 , 351751 , 71032 , 1218733 , 5751132 , 87703854 , 96595026 , 118801102 , 608804196 , 8957053482 , 1064490677
n×2
256433276
n×3
384649914
n×4
512866552
n×5
641083190
n÷2
64108319
n÷3
42738879.333333
n÷3
32054159.5
n÷5
25643327.6
n2
16439506260023044
n3
2.1078182230401E+24
n4
2.7025736607334E+32
n5
3.4651490872659E+40
2 √n
11323.278588819
3 √n
504.25257926522
4 √n
106.41089506634
5 √n
41.839730357448
1 , 2 , 11 , 22 , 233 , 466 , 2563 , 5126 , 25013 , 50026 , 275143 , 550286 , 5828029 , 11656058 , 64108319 , 128216638
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
-128216637
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 128216638 can be divided by 16 positive divisors.
The sum of these divisors (counting 128216638) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101001000110111000111110
3
Ternary
22221021002011101
4
Quaternary
13221012320332
5
Quinary
230310413023
6
Senary
20420043314
8
Octal
751067076
10
Decimal
128216638
12
Duodecimal
36b3353a
16
Hexadecimal
7a46e3e
20
Vigesimal
20171bi
36
Base36
24c4la
md5
e68c0a41222b7670ea90261b4e1f7961
sha1
ec767ef2ca13978422415ab391fde84c8688662f
sha256
3dbcb3598ebf88e24e9bd1c2cc6290d4068a4118aa6e1a2d2958bee060351ee9
sha512
934ed488b6931e00e26b7596ac592fdb225b6ce2290d08824b0fb89aa365e5423f5a6e9b8085edbe70fc191ef613edbf16e8159ac2c38942a9789006e8f670e6
ripemd-160
b593b0c3418cc6b3d08df75208e2292e79afb1c1
Diameter
256433276
Circumference
805608896.01756
Area
5.1646232095132E+16
Volume
8.8292083261407E+24
Surface area
2.0658492838053E+17
Circumference
805608896.01756
Perimeter
512866552
Area
16439506260023044
Diagonal
181325708.38148
Surface area
98637037560138264
Volume
2.1078182230401E+24
Space diagonal
222077731.39167
Perimeter
384649914
Area
7.1185150234266E+15
Altitude
111038865.69583
Surface area
7.1185150234266E+15
Volume
2.4840875983671E+23
Height
60441902.793827