128385189 is an odd 9-digits composite number following 128385188
and preceding 128385190 . In scientific notation, it is written as 1.28385189 × 10^8.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 84913920 positive integers (up to 128385189) that are relatively prime to 128385189.
128385189 has 8 divisors, whose sum is 134192128
The reverse of 128385189 is 981583821
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred twenty-eight million three hundred eighty-five thousand one hundred eighty-nine
Scientific notation
1.28385189 × 10^8
Engineering notation
1.28385189 × 10^6
Prime Factorization
27 × 127 × 37441
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128385189
Product of the distinct prime numbers
The prime factorization of 128385189 is 27 × 127 × 37441.
Since it has a total of 3 prime factors.
10 , 1 , 62 , 8 , 877 , 647 , 3036 , 7045 , 63608 , 89275 , 79378 , 375876 , 6333421 , 1604296 , 53742177 , 97899915 , 886540177 , 363735328 , 524195524 , 7732783862
n×2
256770378
n×3
385155567
n×4
513540756
n×5
641925945
n÷2
64192594.5
n÷3
42795063
n÷3
32096297.25
n÷5
25677037.8
n2
16482756754565721
n3
2.1161418411759E+24
n4
2.7168127023018E+32
n5
3.4879851226262E+40
2 √n
11330.718820975
3 √n
504.47344259452
4 √n
106.44584924258
5 √n
41.850724910401
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128385188
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128385189 can be divided by 8 positive divisors.
The sum of these divisors (counting 128385189) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101001110000000010100101
3
Ternary
22221120122101000
4
Quaternary
13221300002211
5
Quinary
230331311224
6
Senary
20423423513
8
Octal
751600245
10
Decimal
128385189
12
Duodecimal
36bb4b99
16
Hexadecimal
7a700a5
20
Vigesimal
20282j9
36
Base36
24fqn9
md5
ca5c6523e13401d9906e8de0b106a286
sha1
1651c6dde48ef028f83adf76807c434db63a4240
sha256
989fdfc8ebb652335ee74d783ee18702e8ba127014be77e4a094036fa0ba550a
sha512
1d4a971a816167d06fac209f5aed1faa2d76afeaa64a71b19061902db99954ea12c1f28afab1a331b2b10ed8deffe57027b7e9e9d19b62d59ee002e0e82ec834
ripemd-160
f40e5f69afbce4f792c511ac122e2bcc1c2b10b4
Diameter
256770378
Circumference
806667933.18427
Area
5.1782107531051E+16
Volume
8.8640742162564E+24
Surface area
2.071284301242E+17
Circumference
806667933.18427
Perimeter
513540756
Area
16482756754565721
Diagonal
181564075.49163
Surface area
98896540527394326
Volume
2.1161418411759E+24
Space diagonal
222369670.28733
Perimeter
385155567
Area
7.1372430369267E+15
Altitude
111184835.14367
Surface area
7.1372430369267E+15
Volume
2.4938970764135E+23
Height
60521358.497211