128664 is an even 6-digits composite number following 128663
and preceding 128665 . In scientific notation, it is written as 1.28664 × 10^5.
The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors.
There are 42864 positive integers (up to 128664) that are relatively prime to 128664.
128664 has 16 divisors, whose sum is 268200
The reverse of 128664 is 466821
Previous prime number is 9
Is Prime? no
Number parity even
Number length 6
Sum of Digits 27
Digital Root 9
Name
one hundred twenty-eight thousand six hundred sixty-four
Scientific notation
1.28664 × 10^5
Engineering notation
1.28664 × 10^3
Prime Factorization
2 × 2 × 2 × 9 × 1787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
32166
Product of the distinct prime numbers
The prime factorization of 128664 is 2 × 2 × 2 × 9 × 1787.
Since it has a total of 5 prime factors.
9 , 6 , 45 , 17 , 157 , 366 , 6138 , 2422 , 93396 , 94891 , 794448 , 556299 , 2908244 , 813497 , 71268973 , 50455180 , 816248773 , 27626962 , 4835607695 , 2545061078
n×2
257328
n×3
385992
n×4
514656
n×5
643320
n÷2
64332
n÷3
42888
n÷3
32166
n÷5
25732.8
n2
16554424896
n3
2129958524818944
n4
2.740489836373E+20
n5
3.526023843071E+25
2 √n
358.69764426324
3 √n
50.483836280423
4 √n
18.939314778081
5 √n
10.516988760459
1 , 2 , 4 , 8 , 9 , 18 , 36 , 72 , 1787 , 3574 , 7148 , 14296 , 16083 , 32166 , 64332 , 128664
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
-128663
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 128664 can be divided by 16 positive divisors.
The sum of these divisors (counting 128664) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111011010011000
3
Ternary
20112111100
4
Quaternary
133122120
5
Quinary
13104124
6
Senary
2431400
8
Octal
373230
10
Decimal
128664
12
Duodecimal
62560
16
Hexadecimal
1f698
20
Vigesimal
g1d4
36
Base36
2ra0
md5
a3ab06e2e3a4d9ae3afe996e4233c2a2
sha1
0c2a4ef9e00c6c0f71545dd6db7a03fff42eba77
sha256
5a403dce2f62b09a0c5300245c99d137c17687ed7053b3ea25088eae9d33d679
sha512
8a1fe0a60e01a2c3225a490d641752ec50c71dfa8c8ee1e8b12ba34d0eb3c5381c7fa84f7f51619a79ac7e4c4c95ef46c3d3b22e8d755089b676561a774878cd
ripemd-160
4098ecd163119ed891cacbb3490b9747cfda0dc6
Diameter
257328
Circumference
808419.75436295
Area
52007259637.678
Volume
8.9219494053629E+15
Surface area
208029038550.71
Circumference
808419.75436295
Perimeter
514656
Area
16554424896
Diagonal
181958.37378917
Surface area
99326549376
Volume
2129958524818944
Space diagonal
222852.58510504
Perimeter
385992
Area
7168276252.4888
Altitude
111426.29255252
Surface area
7168276252.4888
Volume
2.5101801942426E+14
Height
60652.791263057