128385641 is an odd 9-digits composite number following 128385640
and preceding 128385642 . In scientific notation, it is written as 1.28385641 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 121628484 positive integers (up to 128385641) that are relatively prime to 128385641.
128385641 has 4 divisors, whose sum is 135142800
The reverse of 128385641 is 146583821
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million three hundred eighty-five thousand six hundred forty-one
Scientific notation
1.28385641 × 10^8
Engineering notation
1.28385641 × 10^6
Prime Factorization
19 × 6757139
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128385641
Product of the distinct prime numbers
The prime factorization of 128385641 is 19 × 6757139.
Since it has a total of 2 prime factors.
1 , 6 , 60 , 32 , 468 , 100 , 203 , 3230 , 49677 , 94501 , 60064 , 564235 , 238213 , 9991538 , 7486782 , 66198538 , 471458415 , 296364510 , 6429103381 , 5254707622
n×2
256771282
n×3
385156923
n×4
513542564
n×5
641928205
n÷2
64192820.5
n÷3
42795213.666667
n÷3
32096410.25
n÷5
25677128.2
n2
16482872814980881
n3
2.1161641918728E+24
n4
2.7168509623484E+32
n5
3.4880465230256E+40
2 √n
11330.738766735
3 √n
504.47403461953
4 √n
106.44594293225
5 √n
41.850754378755
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
-128385640
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 128385641 can be divided by 4 positive divisors.
The sum of these divisors (counting 128385641) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001110000001001101001
3
Ternary
22221120122222202
4
Quaternary
13221300021221
5
Quinary
230331320031
6
Senary
20423425545
8
Octal
751601151
10
Decimal
128385641
12
Duodecimal
36bb52b5
16
Hexadecimal
7a70269
20
Vigesimal
2028421
36
Base36
24fqzt
md5
1b5a3ce4244e6310f2a52d918ca94898
sha1
1bdb2e8ba221d44e38244e51e68a3e1c6d0c5826
sha256
07eb56454bd99e8027233f1fe3b178e504a8cea98cb89310e52fa7e98d57452f
sha512
0a1206c1fcc828750d6b274810d97521e76554385cb3500baef12599f1003437a3999b449eb7a8f240d2bc27fa3bffe20b4dcb049ae9ac31722cfbcff870bde6
ripemd-160
824e3af849ea5019c0c9558e2bb935a9d441f184
Diameter
256771282
Circumference
806670773.18403
Area
5.1782472145599E+16
Volume
8.8641678386365E+24
Surface area
2.071298885824E+17
Circumference
806670773.18403
Perimeter
513542564
Area
16482872814980881
Diagonal
181564714.71616
Surface area
98897236889885286
Volume
2.1161641918728E+24
Space diagonal
222370453.1743
Perimeter
385156923
Area
7.1372932925607E+15
Altitude
111185226.58715
Surface area
7.1372932925607E+15
Volume
2.4939234169623E+23
Height
60521571.572054