128695984 is an even 9-digits composite number following 128695983
and preceding 128695985 . In scientific notation, it is written as 1.28695984 × 10^8.
The sum of its digits is 52. It has a total of 6 prime factors and 20 positive divisors.
There are 60562688 positive integers (up to 128695984) that are relatively prime to 128695984.
128695984 has 20 divisors, whose sum is 264016584
The reverse of 128695984 is 489596821
Previous prime number is 17
Is Prime? no
Number parity even
Number length 9
Sum of Digits 52
Digital Root 7
Name
one hundred twenty-eight million six hundred ninety-five thousand nine hundred eighty-four
Scientific notation
1.28695984 × 10^8
Engineering notation
1.28695984 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 17 × 473147
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
16086998
Product of the distinct prime numbers
The prime factorization of 128695984 is 2 × 2 × 2 × 2 × 17 × 473147.
Since it has a total of 6 prime factors.
1 , 2 , 72 , 51 , 681 , 907 , 1265 , 1757 , 29147 , 93305 , 522817 , 547308 , 4664418 , 2236785 , 62500544 , 70282610 , 389882179 , 609336998 , 203261536 , 5032155301
n×2
257391968
n×3
386087952
n×4
514783936
n×5
643479920
n÷2
64347992
n÷3
42898661.333333
n÷3
32173996
n÷5
25739196.8
n2
16562656297728256
n3
2.1315473498899E+24
n4
2.7432158363668E+32
n5
3.5304086138561E+40
2 √n
11344.425238856
3 √n
504.88019116449
4 √n
106.51021189941
5 √n
41.870967774041
1 , 2 , 4 , 8 , 16 , 17 , 34 , 68 , 136 , 272 , 473147 , 946294 , 1892588 , 3785176 , 7570352 , 8043499 , 16086998 , 32173996 , 64347992 , 128695984
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128695983
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128695984 can be divided by 20 positive divisors.
The sum of these divisors (counting 128695984) is 1, the average is 0.05.
Base
System
Value
2
Binary
111101010111011111010110000
3
Ternary
22222011102200221
4
Quaternary
13222323322300
5
Quinary
230421232414
6
Senary
20434222424
8
Octal
752737260
10
Decimal
128695984
12
Duodecimal
37124a14
16
Hexadecimal
7abbeb0
20
Vigesimal
2046jj4
36
Base36
24megg
md5
4b81586473cdbf3170503352b87d8772
sha1
91a72e9cffd25d800bfc28f5268efdb074fbe3d8
sha256
19126b391ec5713fc83580647002291dc55c24e2062a170c71d841aa58280e35
sha512
7a215ac64a626dde89be10fa12c78266968e5a3830292c1abcc058a9353e2842fa955a3ae8251f40e92a5f940b8203d31d0df8791738a0664a75beafc32cf6f8
ripemd-160
5cba98553510121906abff72eaa42d7bfdedfca2
Diameter
257391968
Circumference
808620715.76182
Area
5.2033119348876E+16
Volume
8.9286046602573E+24
Surface area
2.081324773955E+17
Circumference
808620715.76182
Perimeter
514783936
Area
16562656297728256
Diagonal
182003605.99575
Surface area
99375937786369536
Volume
2.1315473498899E+24
Space diagonal
222907983.01807
Perimeter
386087952
Area
7.1718405539915E+15
Altitude
111453991.50904
Surface area
7.1718405539915E+15
Volume
2.5120526425456E+23
Height
60667868.66525