128968 is an even 6-digits composite number following 128967
and preceding 128969 . In scientific notation, it is written as 1.28968 × 10^5.
The sum of its digits is 34. It has a total of 6 prime factors and 24 positive divisors.
There are 54096 positive integers (up to 128968) that are relatively prime to 128968.
128968 has 24 divisors, whose sum is 282150
The reverse of 128968 is 869821
Previous prime number is 7
Is Prime? no
Number parity even
Number length 6
Sum of Digits 34
Digital Root 7
Name
one hundred twenty-eight thousand nine hundred sixty-eight
Scientific notation
1.28968 × 10^5
Engineering notation
1.28968 × 10^3
Prime Factorization
2 × 2 × 2 × 329 × 7 × 7
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
4606
Product of the distinct prime numbers
The prime factorization of 128968 is 2 × 2 × 2 × 329 × 7 × 7.
Since it has a total of 6 prime factors.
8 , 3 , 91 , 34 , 292 , 630 , 1354 , 2055 , 55068 , 44006 , 677752 , 31311 , 9331796 , 8066540 , 28897618 , 62440240 , 950418599 , 405740445 , 8770722493 , 2025146691
n×2
257936
n×3
386904
n×4
515872
n×5
644840
n÷2
64484
n÷3
42989.333333333
n÷3
32242
n÷5
25793.6
n2
16632745024
n3
2145091860255232
n4
2.766482070334E+20
n5
3.5678765964683E+25
2 √n
359.12114947466
3 √n
50.523565121942
4 √n
18.950492064183
5 √n
10.521953859054
1 , 2 , 4 , 7 , 8 , 14 , 28 , 49 , 56 , 98 , 196 , 329 , 392 , 658 , 1316 , 2303 , 2632 , 4606 , 9212 , 16121 , 18424 , 32242 , 64484 , 128968
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128967
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128968 can be divided by 24 positive divisors.
The sum of these divisors (counting 128968) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
11111011111001000
3
Ternary
20112220121
4
Quaternary
133133020
5
Quinary
13111333
6
Senary
2433024
8
Octal
373710
10
Decimal
128968
12
Duodecimal
62774
16
Hexadecimal
1f7c8
20
Vigesimal
g288
36
Base36
2rig
md5
1107f1d96c712e5211013fbc52ded57a
sha1
eead49036a449886a8825ce85846c1b4136bd0a1
sha256
6f99a2f85167219e3eb17660c0aeea9f228e1ffc9eb986ce4a4e211fac068aca
sha512
c04d04c3e56fa88e1e66f078f1a634203105be3523065a6e2497c908d553da7f781fb7243c9d3ef8f92d9f859f4ed9686e7f8ef7f9e9afd9782d5d87f3266f10
ripemd-160
bfab4c528f5644efe8b5f683fefb076facbf6bd1
Diameter
257936
Circumference
810329.84269634
Area
52253309576.431
Volume
8.9853397726041E+15
Surface area
209013238305.72
Circumference
810329.84269634
Perimeter
515872
Area
16632745024
Diagonal
182388.29471213
Surface area
99796470144
Volume
2145091860255232
Space diagonal
223379.12855054
Perimeter
386904
Area
7202189862.7266
Altitude
111689.56427527
Surface area
7202189862.7266
Volume
2.5280150010909E+14
Height
60796.098237378