128438903 is an odd 9-digits composite number following 128438902
and preceding 128438904 . In scientific notation, it is written as 1.28438903 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 128405760 positive integers (up to 128438903) that are relatively prime to 128438903.
128438903 has 4 divisors, whose sum is 128472048
The reverse of 128438903 is 309834821
Previous prime number is 4481
Is Prime? no Number parity odd Number length 9 Sum of Digits 38 Digital Root 2
Name
one hundred twenty-eight million four hundred thirty-eight thousand nine hundred three
Scientific notation
1.28438903 × 10^8
Engineering notation
1.28438903 × 10^6
Prime Factorization
4481 × 28663
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
128438903 Product of the distinct prime numbers
The prime factorization of 128438903 is 4481 × 28663.
Since it has a total of 2 prime factors.
7 , 6 , 90 , 27 , 296 , 280 , 1009 , 284 , 66909 , 74867 , 24394 , 634504 , 5472800 , 4424965 , 30874485 , 21074488 , 264778455 , 49269748 , 3073070676 , 4072382929
n×2
256877806
n×3
385316709
n×4
513755612
n×5
642194515
n÷2
64219451.5
n÷3
42812967.666667
n÷3
32109725.75
n÷5
25687780.6
n2
16496551803843409
n3
2.1187990169683E+24
n4
2.7213622141689E+32
n5
3.495287774535E+40
2 √n11333.088855206
3 √n504.5437869195
4 √n106.45698124222
5 √n41.854226239092
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
-128438902 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 128438903 can be divided by 4 positive divisors.
The sum of these divisors (counting 128438903) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001111101001001110111
3
Ternary
22221200101001102
4
Quaternary
13221331021313
5
Quinary
230340021103
6
Senary
20424520315
8
Octal
751751167
10
Decimal
128438903
12
Duodecimal
3702009b
16
Hexadecimal
7a7d277
20
Vigesimal
202eh53
36
Base36
24gw3b
md5
f9d9a11286d0ba8556e53997c39615d6
sha1
a221e78464210b9b428a9273c66a2ee083ab5c90
sha256
ca68cfd34846d18cb45a7a1c1b609228a96576f9f595c0cf428a87dbd062d97a
sha512
13659f5339b31ddc03f5c2ff6224f20abd3b75ee92a6d4c358ad0550ab78dff23265cc9d27e2e4789fb0f2677cc698732f2e3149ef4bea0ce5f0a137ed617bfe
ripemd-160
f213d9620a6714db90a533fdca0faa435ab2a18f
Diameter
256877806
Circumference
807005428.19986
Area
5.1825445956518E+16
Volume
8.8752045681879E+24
Surface area
2.0730178382607E+17
Circumference
807005428.19986
Perimeter
513755612
Area
16496551803843409
Diagonal
181640038.55892
Surface area
98979310823060454
Volume
2.1187990169683E+24
Space diagonal
222462705.66441
Perimeter
385316709
Area
7.1432164684872E+15
Altitude
111231352.83221
Surface area
7.1432164684872E+15
Volume
2.4970285881161E+23
Height
60546679.519641