128300987 is an odd 9-digits composite number following 128300986
and preceding 128300988 . In scientific notation, it is written as 1.28300987 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 126126336 positive integers (up to 128300987) that are relatively prime to 128300987.
128300987 has 4 divisors, whose sum is 130475640
The reverse of 128300987 is 789003821
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million three hundred thousand nine hundred eighty-seven
Scientific notation
1.28300987 × 10^8
Engineering notation
1.28300987 × 10^6
Prime Factorization
59 × 2174593
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128300987
Product of the distinct prime numbers
The prime factorization of 128300987 is 59 × 2174593.
Since it has a total of 2 prime factors.
10 , 5 , 12 , 65 , 912 , 320 , 7997 , 4352 , 97617 , 10372 , 220004 , 432516 , 9529745 , 2971096 , 34976312 , 35066220 , 293558671 , 197280036 , 3322659861 , 4996236216
n×2
256601974
n×3
384902961
n×4
513203948
n×5
641504935
n÷2
64150493.5
n÷3
42766995.666667
n÷3
32075246.75
n÷5
25660197.4
n2
16461143265174169
n3
2.1119809280702E+24
n4
2.7096923759659E+32
n5
3.476562063028E+40
2 √n
11327.002560254
3 √n
504.36313142099
4 √n
106.4283917019
5 √n
41.845233872688
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128300986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128300987 can be divided by 4 positive divisors.
The sum of these divisors (counting 128300987) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001011011011110111011
3
Ternary
22221102100212102
4
Quaternary
13221123132323
5
Quinary
230321112422
6
Senary
20421534015
8
Octal
751333673
10
Decimal
128300987
12
Duodecimal
36b7430b
16
Hexadecimal
7a5b7bb
20
Vigesimal
201hc97
36
Base36
24dxob
md5
60552afb5ea0d3f4f2f2339477b4d485
sha1
dbd1e70a24ea30ec656352d81cd2ee663ce23464
sha256
e27a4ab31f300ad4a45f4546ca119a0824e9358bc10985df64a1224586218b1b
sha512
d71f928e00cddaee0002258d507f39364f01d540f1ad69042f90458f149fe0435a2580f4651cf1fd56ff3b3fedfd41f80a0f8b3c067865c54a471954cf5f0779
ripemd-160
bd8a265e3550d73d91747d94aa350722d94d874e
Diameter
256601974
Circumference
806138876.41504
Area
5.171420675156E+16
Volume
8.8466450241963E+24
Surface area
2.0685682700624E+17
Circumference
806138876.41504
Perimeter
513203948
Area
16461143265174169
Diagonal
181444995.88125
Surface area
98766859591045014
Volume
2.1119809280702E+24
Space diagonal
222223828.14523
Perimeter
384902961
Area
7.127884121488E+15
Altitude
111111914.07262
Surface area
7.127884121488E+15
Volume
2.4889933932919E+23
Height
60481665.293751