128752009 is an odd 9-digits composite number following 128752008
and preceding 128752010 . In scientific notation, it is written as 1.28752009 × 10^8.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 128701440 positive integers (up to 128752009) that are relatively prime to 128752009.
128752009 has 4 divisors, whose sum is 128802580
The reverse of 128752009 is 900257821
Previous prime number is 2689
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 34
Digital Root 7
Name
one hundred twenty-eight million seven hundred fifty-two thousand nine
Scientific notation
1.28752009 × 10^8
Engineering notation
1.28752009 × 10^6
Prime Factorization
2689 × 47881
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128752009
Product of the distinct prime numbers
The prime factorization of 128752009 is 2689 × 47881.
Since it has a total of 2 prime factors.
6 , 7 , 69 , 97 , 221 , 932 , 995 , 2028 , 86413 , 39626 , 896266 , 939172 , 4316056 , 3560292 , 8396450 , 55549101 , 2201748 , 287748276 , 5254632400 , 4272486880
n×2
257504018
n×3
386256027
n×4
515008036
n×5
643760045
n÷2
64376004.5
n÷3
42917336.333333
n÷3
32188002.25
n÷5
25750401.8
n2
16577079821536081
n3
2.1343323303761E+24
n4
2.7479957540958E+32
n5
3.538099740633E+40
2 √n
11346.894244682
3 √n
504.95344340923
4 √n
106.52180173412
5 √n
41.874612662595
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
-128752008
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 128752009 can be divided by 4 positive divisors.
The sum of these divisors (counting 128752009) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101011001001100110001001
3
Ternary
22222021021112221
4
Quaternary
13223021212021
5
Quinary
230430031014
6
Senary
20435334041
8
Octal
753114611
10
Decimal
128752009
12
Duodecimal
37151321
16
Hexadecimal
7ac9989
20
Vigesimal
204e009
36
Base36
24nlop
md5
dc110d2c3de1f262d63400b9915755e2
sha1
db7b715b03a4c34571fb23e14b318899641323b9
sha256
edf5ee036e89a616c3050dfbfe6758e11dadf6d1d6022ddfd8b6a9329b74fa13
sha512
c8b21a0b7268ce1614158bb21bcc1aa72016b4cafd65b9c7ccd3013fbb2b6ba9a9ed3c44bff123a265a513ccb752aa74e8d9573d33c691e6f88d1fc4a4468fec
ripemd-160
27a3740094340612255ab0b0e4e31c97e6731227
Diameter
257504018
Circumference
808972731.21865
Area
5.2078432185309E+16
Volume
8.9402703592385E+24
Surface area
2.0831372874124E+17
Circumference
808972731.21865
Perimeter
515008036
Area
16577079821536081
Diagonal
182082837.31058
Surface area
99462478929216486
Volume
2.1343323303761E+24
Space diagonal
223005021.16457
Perimeter
386256027
Area
7.1780861230063E+15
Altitude
111502510.58228
Surface area
7.1780861230063E+15
Volume
2.5153347735244E+23
Height
60694279.103528