128641009 is an odd 9-digits composite number following 128641008
and preceding 128641010 . In scientific notation, it is written as 1.28641009 × 10^8.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 108455760 positive integers (up to 128641009) that are relatively prime to 128641009.
128641009 has 8 divisors, whose sum is 149428928
The reverse of 128641009 is 900146821
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-eight million six hundred forty-one thousand nine
Scientific notation
1.28641009 × 10^8
Engineering notation
1.28641009 × 10^6
Prime Factorization
61 × 7 × 301267
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128641009
Product of the distinct prime numbers
The prime factorization of 128641009 is 61 × 7 × 301267.
Since it has a total of 3 prime factors.
2 , 10 , 60 , 6 , 261 , 855 , 6049 , 711 , 30673 , 26442 , 282755 , 971997 , 6786104 , 9640601 , 57791950 , 99073079 , 689918149 , 671107393 , 1290582899 , 7729891709
n×2
257282018
n×3
385923027
n×4
514564036
n×5
643205045
n÷2
64320504.5
n÷3
42880336.333333
n÷3
32160252.25
n÷5
25728201.8
n2
16548509196538081
n3
2.1288169204884E+24
n4
2.7385315662791E+32
n5
3.5228746386449E+40
2 √n
11342.001983777
3 √n
504.80829111828
4 √n
106.49883559822
5 √n
41.867389962526
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
-128641008
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 128641009 can be divided by 8 positive divisors.
The sum of these divisors (counting 128641009) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101010101110011111110001
3
Ternary
22222001122021211
4
Quaternary
13222232133301
5
Quinary
230413003014
6
Senary
20433120121
8
Octal
752563761
10
Decimal
128641009
12
Duodecimal
370b9041
16
Hexadecimal
7aae7f1
20
Vigesimal
20402a9
36
Base36
24l81d
md5
66da9461172fa2f69909bfca9c1c5d95
sha1
4acc3163cd79e51e470eeeddb46e882fc356b72b
sha256
3224ef0647d6c57d3bb581fbf43f906dcdeec73c8ec49c984d1462f09c4c3a96
sha512
fb5603ef5880aede03a2e86e8e1a882e2247c6b3c48b42d7fe114f108abc33ab0038e2d0507170f74b04e7776306ed1881e397c50d2619ccd555b72a623d794b
ripemd-160
690ff950174c46ce0b2a597ba64c3353268833e3
Diameter
257282018
Circumference
808275297.64956
Area
5.1988674919707E+16
Volume
8.9171674643255E+24
Surface area
2.0795469967883E+17
Circumference
808275297.64956
Perimeter
514564036
Area
16548509196538081
Diagonal
181925859.60516
Surface area
99291055179228486
Volume
2.1288169204884E+24
Space diagonal
222812763.52493
Perimeter
385923027
Area
7.1657146794812E+15
Altitude
111406381.76246
Surface area
7.1657146794812E+15
Volume
2.5088348006367E+23
Height
60641953.20172