128308972 is an even 9-digits composite number following 128308971
and preceding 128308973 . In scientific notation, it is written as 1.28308972 × 10^8.
The sum of its digits is 40. It has a total of 5 prime factors and 24 positive divisors.
There are 57220800 positive integers (up to 128308972) that are relatively prime to 128308972.
128308972 has 24 divisors, whose sum is 249579792
The reverse of 128308972 is 279803821
Previous prime number is 53
Is Prime? no
Number parity even
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-eight million three hundred eight thousand nine hundred seventy-two
Scientific notation
1.28308972 × 10^8
Engineering notation
1.28308972 × 10^6
Prime Factorization
2 × 2 × 11 × 53 × 55021
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
64154486
Product of the distinct prime numbers
The prime factorization of 128308972 is 2 × 2 × 11 × 53 × 55021.
Since it has a total of 5 prime factors.
8 , 4 , 39 , 46 , 345 , 957 , 979 , 6291 , 63251 , 34082 , 265439 , 898414 , 4679327 , 3491924 , 71607068 , 45030782 , 570775840 , 696961652 , 6898796120 , 7552664927
n×2
256617944
n×3
384926916
n×4
513235888
n×5
641544860
n÷2
64154486
n÷3
42769657.333333
n÷3
32077243
n÷5
25661794.4
n2
16463192295696784
n3
2.1123752792992E+24
n4
2.7103670056509E+32
n5
3.4776440423779E+40
2 √n
11327.355031074
3 √n
504.37359446353
4 √n
106.430047595
5 √n
41.845754719616
1 , 2 , 4 , 11 , 22 , 44 , 53 , 106 , 212 , 583 , 1166 , 2332 , 55021 , 110042 , 220084 , 605231 , 1210462 , 2420924 , 2916113 , 5832226 , 11664452 , 32077243 , 64154486 , 128308972
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
-128308971
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 128308972 can be divided by 24 positive divisors.
The sum of these divisors (counting 128308972) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101001011101011011101100
3
Ternary
22221102202211011
4
Quaternary
13221131123230
5
Quinary
230321341342
6
Senary
20422035004
8
Octal
751353354
10
Decimal
128308972
12
Duodecimal
36b78a64
16
Hexadecimal
7a5d6ec
20
Vigesimal
201ic8c
36
Base36
24e3u4
md5
d83d7b7e1f97456fffb20d0c2571fde7
sha1
b4fb25c5a3a6d8a4ddd72275d8be6a7647d982f9
sha256
79a5eb0d3a445f81618d2b445603f90f74ef875ffb08f01db766b4c948e2f286
sha512
695bed27c3409f117f90786f15579e55f8938dee0c1b6ad3753e7a3954c06a8a610aadbd4f7052bfea548c8adb55d453a5dfc47b11f64fc43daeb79caffea3ba
ripemd-160
b5cc600ebdda8baca4f5681fe6705b03059957bc
Diameter
256617944
Circumference
806189047.64972
Area
5.1720643970797E+16
Volume
8.8482968787613E+24
Surface area
2.0688257588319E+17
Circumference
806189047.64972
Perimeter
513235888
Area
16463192295696784
Diagonal
181456288.37655
Surface area
98779153774180704
Volume
2.1123752792992E+24
Space diagonal
222237658.57093
Perimeter
384926916
Area
7.1287713777308E+15
Altitude
111118829.28547
Surface area
7.1287713777308E+15
Volume
2.4894581406721E+23
Height
60485429.45885