128431 is an odd 6-digits prime number following 128430
and preceding 128432 . In scientific notation, it is written as 1.28431 × 10^5.
The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors.
There are 128430 positive integers (up to 128431) that are relatively prime to 128431.
128431 has 2 divisors, whose sum is 128432
The reverse of 128431 is 134821
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 19
Digital Root 1
Name
one hundred twenty-eight thousand four hundred thirty-one
Scientific notation
1.28431 × 10^5
Engineering notation
1.28431 × 10^3
Prime Factorization
128431
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
128431
Product of the distinct prime numbers
The prime factorization of 128431 is 128431.
Since it has a total of 1 prime factors.
3 , 6 , 18 , 28 , 950 , 30 , 6910 , 9570 , 2325 , 67770 , 698238 , 531083 , 7819396 , 1658057 , 51313854 , 7444965 , 4425132 , 771690770 , 1809392357 , 921728538
n×2
256862
n×3
385293
n×4
513724
n×5
642155
n÷2
64215.5
n÷3
42810.333333333
n÷3
32107.75
n÷5
25686.2
n2
16494521761
n3
2118407924286991
n4
2.720692481241E+20
n5
3.4942125605827E+25
2 √n
358.37271101466
3 √n
50.453343831213
4 √n
18.930734560884
5 √n
10.513176916673
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
128432
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
64216
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
358.37410620747
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999984427557
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128431 can be divided by 2 positive divisors.
The sum of these divisors (counting 128431) is 128432, the average is 64216.
Base
System
Value
2
Binary
11111010110101111
3
Ternary
20112011201
4
Quaternary
133112233
5
Quinary
13102211
6
Senary
2430331
8
Octal
372657
10
Decimal
128431
12
Duodecimal
623a7
16
Hexadecimal
1f5af
20
Vigesimal
g11b
36
Base36
2r3j
md5
07e0ab0a9145b9c28f12592237a902a8
sha1
c88dd7b19605c091b8967e8c0bd0c6f670f68816
sha256
f7a6fe7be30a48e3e5f10a1c0a67fcb3b9069a992d8022d07d5bbce6e7c92128
sha512
5bea3881e1843cd3d1787809c073e995e1e8992041268840e48978fad4f16c3c3950a4ba23af04c356c57457e6d59138dbad8c908dcfb343507a2e23bdac94d5
ripemd-160
a1bfc11c8ef50f2652c4e56508fe394fdc116b2e
Diameter
256862
Circumference
806955.77218638
Area
51819068388.835
Volume
8.8735663629952E+15
Surface area
207276273555.34
Circumference
806955.77218638
Perimeter
513724
Area
16494521761
Diagonal
181628.86202914
Surface area
98967130566
Volume
2118407924286991
Space diagonal
222449.01726688
Perimeter
385293
Area
7142337434.1506
Altitude
111224.50863344
Surface area
7142337434.1506
Volume
2.4965676809711E+14
Height
60542.954009713