128265 is an odd 6-digits composite number following 128264
and preceding 128266 . In scientific notation, it is written as 1.28265 × 10^5.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 64256 positive integers (up to 128265) that are relatively prime to 128265.
128265 has 16 divisors, whose sum is 217728
The reverse of 128265 is 562821
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 24
Digital Root 6
Name
one hundred twenty-eight thousand two hundred sixty-five
Scientific notation
1.28265 × 10^5
Engineering notation
1.28265 × 10^3
Prime Factorization
5 × 3 × 17 × 503
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128265
Product of the distinct prime numbers
The prime factorization of 128265 is 5 × 3 × 17 × 503.
Since it has a total of 4 prime factors.
1 , 6 , 17 , 48 , 950 , 19 , 3076 , 2910 , 96399 , 84790 , 971921 , 990770 , 8903450 , 8425542 , 90416879 , 94774429 , 629563735 , 460506786 , 5485946045 , 4339886535
n×2
256530
n×3
384795
n×4
513060
n×5
641325
n÷2
64132.5
n÷3
42755
n÷3
32066.25
n÷5
25653
n2
16451910225
n3
2110204265009625
n4
2.7066535005146E+20
n5
3.471689112435E+25
2 √n
358.14103367249
3 √n
50.431597092829
4 √n
18.924614492044
5 √n
10.510457806261
1 , 3 , 5 , 15 , 17 , 51 , 85 , 255 , 503 , 1509 , 2515 , 7545 , 8551 , 25653 , 42755 , 128265
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128264
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128265 can be divided by 16 positive divisors.
The sum of these divisors (counting 128265) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111010100001001
3
Ternary
20111221120
4
Quaternary
133110021
5
Quinary
13101030
6
Senary
2425453
8
Octal
372411
10
Decimal
128265
12
Duodecimal
62289
16
Hexadecimal
1f509
20
Vigesimal
g0d5
36
Base36
2qyx
md5
6f20d0a2672387f007329176e56e6347
sha1
14f04d746f79c6e58db86e5c1bbbbf0a980c24cb
sha256
9b147aa82e95c328811abc4b82f8f8377e2cbacd1147db05b7cce3fbe0ec206a
sha512
a64fc30d6ad152714ff8ac4efad1002f67fda0a8d48c8153a68133a4cebb27d0248042db1b5b0113cc41d53bbd50220d331179483b3cdfa7a25962a020d9ece3
ripemd-160
8ee276d3c98884df85905b146ce99294129682c2
Diameter
256530
Circumference
805912.76342539
Area
51685200300.379
Volume
8.8392029553708E+15
Surface area
206740801201.52
Circumference
805912.76342539
Perimeter
513060
Area
16451910225
Diagonal
181394.10257779
Surface area
98711461350
Volume
2110204265009625
Space diagonal
222161.49683282
Perimeter
384795
Area
7123886097.8155
Altitude
111080.74841641
Surface area
7123886097.8155
Volume
2.4868995757951E+14
Height
60464.700859262