128216643 is an odd 9-digits composite number following 128216642
and preceding 128216644 . In scientific notation, it is written as 1.28216643 × 10^8.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 84825000 positive integers (up to 128216643) that are relatively prime to 128216643.
128216643 has 4 divisors, whose sum is 128543288
The reverse of 128216643 is 346612821
Previous prime number is 393
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred twenty-eight million two hundred sixteen thousand six hundred forty-three
Scientific notation
1.28216643 × 10^8
Engineering notation
1.28216643 × 10^6
Prime Factorization
393 × 326251
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128216643
Product of the distinct prime numbers
The prime factorization of 128216643 is 393 × 326251.
Since it has a total of 2 prime factors.
5 , 8 , 38 , 80 , 362 , 645 , 9559 , 2081 , 71551 , 40840 , 425268 , 588036 , 4925880 , 6866088 , 47333541 , 45687747 , 834616217 , 802021161 , 1418165309 , 3070123481
n×2
256433286
n×3
384649929
n×4
512866572
n×5
641083215
n÷2
64108321.5
n÷3
42738881
n÷3
32054160.75
n÷5
25643328.6
n2
16439507542189449
n3
2.1078184696327E+24
n4
2.702574082297E+32
n5
3.4651497629093E+40
2 √n
11323.278809603
3 √n
504.25258581992
4 √n
106.41089610375
5 √n
41.839730683769
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128216642
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128216643 can be divided by 4 positive divisors.
The sum of these divisors (counting 128216643) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001000110111001000011
3
Ternary
22221021002011120
4
Quaternary
13221012321003
5
Quinary
230310413033
6
Senary
20420043323
8
Octal
751067103
10
Decimal
128216643
12
Duodecimal
36b33543
16
Hexadecimal
7a46e43
20
Vigesimal
20171c3
36
Base36
24c4lf
md5
ef2d5434b768b8cde3e84c8291625ee1
sha1
ce199a941f278b28094fe320ee1725c0a8114144
sha256
f05bb63239aa64a08aab53c113c40cc03ed70e75e074e392d880fdca8e7d80e1
sha512
134a1a08d85f8f1784b194be5619fe0a65ffa8ea666381f64db9988b75f96b724b84023e26ab82946d9381a9600004dc467c68bf505722312c457a4c6cc0e62a
ripemd-160
99c767299d60595bebe5b323e150515174738d23
Diameter
256433286
Circumference
805608927.43349
Area
5.1646236123176E+16
Volume
8.8292093590653E+24
Surface area
2.0658494449271E+17
Circumference
805608927.43349
Perimeter
512866572
Area
16439507542189449
Diagonal
181325715.45255
Surface area
98637045253136694
Volume
2.1078184696327E+24
Space diagonal
222077740.05192
Perimeter
384649929
Area
7.118515578621E+15
Altitude
111038870.02596
Surface area
7.118515578621E+15
Volume
2.4840878889792E+23
Height
60441905.15085