128331391 is an odd 9-digits composite number following 128331390
and preceding 128331392 . In scientific notation, it is written as 1.28331391 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 125909992 positive integers (up to 128331391) that are relatively prime to 128331391.
128331391 has 4 divisors, whose sum is 130752792
The reverse of 128331391 is 193133821
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-eight million three hundred thirty-one thousand three hundred ninety-one
Scientific notation
1.28331391 × 10^8
Engineering notation
1.28331391 × 10^6
Prime Factorization
53 × 2421347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128331391
Product of the distinct prime numbers
The prime factorization of 128331391 is 53 × 2421347.
Since it has a total of 2 prime factors.
10 , 9 , 56 , 78 , 409 , 251 , 9781 , 2616 , 85998 , 36883 , 948335 , 745394 , 5680597 , 885753 , 86932482 , 4673460 , 16074390 , 254858931 , 3348062640 , 9747195713
n×2
256662782
n×3
384994173
n×4
513325564
n×5
641656955
n÷2
64165695.5
n÷3
42777130.333333
n÷3
32082847.75
n÷5
25666278.2
n2
16468945915994881
n3
2.1134827377034E+24
n4
2.7122617958396E+32
n5
3.4806832901626E+40
2 √n
11328.344583389
3 √n
504.40296859309
4 √n
106.43469633249
5 √n
41.847216931338
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
-128331390
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 128331391 can be divided by 4 positive divisors.
The sum of these divisors (counting 128331391) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001100010111001111111
3
Ternary
22221110220120111
4
Quaternary
13221202321333
5
Quinary
230323101031
6
Senary
20422330451
8
Octal
751427177
10
Decimal
128331391
12
Duodecimal
36b89a27
16
Hexadecimal
7a62e7f
20
Vigesimal
202189b
36
Base36
24el4v
md5
ab53c7d8fdc7f123c51ea27aacb31110
sha1
ca09aa45ffc2e5ca0b5ffc7266c2bff9037ce37a
sha256
c48e74ef977e41a0758277977a1f86666431d3f97b09e9838eba003c8f8598f2
sha512
e1be154927858871f0132cddc4a4a5f2a540d27171e3276d42fdfdd66c7a3a82db0ae6d49e9e1660a8909a7a9d72b3fa35498890f2efa8af0c4e039cc7beea6a
ripemd-160
51c6a103613314b8de7315541aaa45edabc1f81c
Diameter
256662782
Circumference
806329910.38112
Area
5.1738719502057E+16
Volume
8.8529357896771E+24
Surface area
2.0695487800823E+17
Circumference
806329910.38112
Perimeter
513325564
Area
16468945915994881
Diagonal
181487993.6304
Surface area
98813675495969286
Volume
2.1134827377034E+24
Space diagonal
222276489.41799
Perimeter
384994173
Area
7.1312627684018E+15
Altitude
111138244.70899
Surface area
7.1312627684018E+15
Volume
2.490763292918E+23
Height
60495997.876802