128398431 is an odd 9-digits composite number following 128398430
and preceding 128398432 . In scientific notation, it is written as 1.28398431 × 10^8.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 72545088 positive integers (up to 128398431) that are relatively prime to 128398431.
128398431 has 8 divisors, whose sum is 147292800
The reverse of 128398431 is 134893821
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
one hundred twenty-eight million three hundred ninety-eight thousand four hundred thirty-one
Scientific notation
1.28398431 × 10^8
Engineering notation
1.28398431 × 10^6
Prime Factorization
267 × 7 × 68699
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128398431
Product of the distinct prime numbers
The prime factorization of 128398431 is 267 × 7 × 68699.
Since it has a total of 3 prime factors.
3 , 7 , 52 , 92 , 63 , 126 , 9905 , 7224 , 63146 , 44141 , 786669 , 180369 , 9070865 , 4794380 , 88680960 , 99749003 , 229973946 , 339634547 , 7556448994 , 6681030513
n×2
256796862
n×3
385195293
n×4
513593724
n×5
641992155
n÷2
64199215.5
n÷3
42799477
n÷3
32099607.75
n÷5
25679686.2
n2
16486157083261761
n3
2.1167967027103E+24
n4
2.7179337537398E+32
n5
3.4897842954213E+40
2 √n
11331.303146594
3 √n
504.49078625573
4 √n
106.44859391553
5 √n
41.851588194462
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128398430
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128398431 can be divided by 8 positive divisors.
The sum of these divisors (counting 128398431) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101001110011010001011111
3
Ternary
22221121022112110
4
Quaternary
13221303101133
5
Quinary
230332222211
6
Senary
20424005103
8
Octal
751632137
10
Decimal
128398431
12
Duodecimal
37000793
16
Hexadecimal
7a7345f
20
Vigesimal
2029g1b
36
Base36
24g0v3
md5
38a1ba41634c8ea8c10b89435055afc5
sha1
8c0afdde0e5ab82beb5fc95b558e7ff374ed0884
sha256
800fa7e4d8a594e2b6b1c8eb4728e3b1668ea4d95b4ea72aa749817311a45256
sha512
fafd30f62851f66b58d900b0b5a25871bbc662c0eae5aa3cfdf4d22de88c459b0b582ab0a009a3945e40f175b876845003762cc8250c87e4f979bf870c5daded
ripemd-160
36fe8cc37bacdb6b227d5e257eab397eebb46391
Diameter
256796862
Circumference
806751135.12411
Area
5.1792789978702E+16
Volume
8.8668172938372E+24
Surface area
2.0717115991481E+17
Circumference
806751135.12411
Perimeter
513593724
Area
16486157083261761
Diagonal
181582802.50763
Surface area
98916942499570566
Volume
2.1167967027103E+24
Space diagonal
222392606.10413
Perimeter
385195293
Area
7.1387154224427E+15
Altitude
111196303.05206
Surface area
7.1387154224427E+15
Volume
2.494668838133E+23
Height
60527600.835875