128247390 is an even 9-digits composite number following 128247389
and preceding 128247391 . In scientific notation, it is written as 1.28247390 × 10^8.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 34128000 positive integers (up to 128247390) that are relatively prime to 128247390.
128247390 has 32 divisors, whose sum is 257029920
The reverse of 128247390 is 093742821
Previous prime number is 601
Is Prime? no Number parity even Number length 9 Sum of Digits 36 Digital Root 9
Name
one hundred twenty-eight million two hundred forty-seven thousand three hundred ninety
Scientific notation
1.28247390 × 10^8
Engineering notation
1.28247390 × 10^6
Prime Factorization
2 × 9 × 5 × 601 × 2371
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
128247390 Product of the distinct prime numbers
The prime factorization of 128247390 is 2 × 9 × 5 × 601 × 2371.
Since it has a total of 5 prime factors.
5 , 5 , 5 , 24 , 7 , 608 , 3727 , 7169 , 16014 , 8723 , 348281 , 155283 , 2208844 , 759522 , 15667532 , 27194625 , 195982363 , 901984647 , 3509783391 , 7940302228
n×2
256494780
n×3
384742170
n×4
512989560
n×5
641236950
n÷2
64123695
n÷3
42749130
n÷3
32061847.5
n÷5
25649478
n2
16447393041812100
n3
2.1093352299166E+24
n4
2.7051673787185E+32
n5
3.4693065583379E+40
2 √n11324.636418005
3 √n504.29289003921
4 √n106.41727499802
5 √n41.841737167153
1 , 2 , 5 , 9 , 10 , 18 , 45 , 90 , 601 , 1202 , 2371 , 3005 , 4742 , 5409 , 6010 , 10818 , 11855 , 21339 , 23710 , 27045 , 42678 , 54090 , 106695 , 213390 , 1424971 , 2849942 , 7124855 , 12824739 , 14249710 , 25649478 , 64123695 , 128247390
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128247389 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128247390 can be divided by 32 positive divisors.
The sum of these divisors (counting 128247390) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101001001110011001011110
3
Ternary
22221022122100100
4
Quaternary
13221032121132
5
Quinary
230312404030
6
Senary
20420441530
8
Octal
751163136
10
Decimal
128247390
12
Duodecimal
36b492a6
16
Hexadecimal
7a4e65e
20
Vigesimal
201ai9a
36
Base36
24csbi
md5
3648c8428aec90eb6868e21e5edb66d2
sha1
b6b4541022510a6241c905c0b34b74e14b4f248f
sha256
4cfc894518e89fbaac947f28a9eb645fd7bf741322dd18f2f4a954282c6370b5
sha512
1e6c87925d5aa6f80ff87f5dd3242c1ec88ecce16931a567206dbbb5ee701e06b42f9b093166817520376f8b7d35db07e1d28dbb034ed2ef50c106db986687fc
ripemd-160
20a5a3e17ed9e5c8d634e0d2f91bc29f8693a10a
Diameter
256494780
Circumference
805802116.53213
Area
5.1671009150861E+16
Volume
8.8355627496853E+24
Surface area
2.0668403660344E+17
Circumference
805802116.53213
Perimeter
512989560
Area
16447393041812100
Diagonal
181369198.27695
Surface area
98684358250872600
Volume
2.1093352299166E+24
Space diagonal
222130995.4181
Perimeter
384742170
Area
7.1219301001183E+15
Altitude
111065497.70905
Surface area
7.1219301001183E+15
Volume
2.4858754081161E+23
Height
60456399.425651