28280855 is an odd 8-digits composite number following 28280854
and preceding 28280856 . In scientific notation, it is written as 2.8280855 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 22624680 positive integers (up to 28280855) that are relatively prime to 28280855.
28280855 has 4 divisors, whose sum is 33937032
The reverse of 28280855 is 55808282
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million two hundred eighty thousand eight hundred fifty-five
Scientific notation
2.8280855 × 10^7
Engineering notation
2.8280855 × 10^6
Prime Factorization
5 × 5656171
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28280855
Product of the distinct prime numbers
The prime factorization of 28280855 is 5 × 5656171.
Since it has a total of 2 prime factors.
7 , 3 , 81 , 9 , 973 , 403 , 3219 , 2474 , 1158 , 8863 , 849033 , 512697 , 9579053 , 2579338 , 73375756 , 27268027 , 374080312 , 875978070 , 3426219623 , 5807816315
n×2
56561710
n×3
84842565
n×4
113123420
n×5
141404275
n÷2
14140427.5
n÷3
9426951.6666667
n÷3
7070213.75
n÷5
5656171
n2
799806759531025
n3
2.2619218994317E+22
n4
6.3969085259152E+29
n5
1.8091004246967E+37
2 √n
5317.9747084769
3 √n
304.67080849171
4 √n
72.924445205136
5 √n
30.924202395923
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
-28280854
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 28280855 can be divided by 4 positive divisors.
The sum of these divisors (counting 28280855) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011111000100000010111
3
Ternary
1222012211001002
4
Quaternary
1223320200113
5
Quinary
24214441410
6
Senary
2450053515
8
Octal
153704027
10
Decimal
28280855
12
Duodecimal
957a29b
16
Hexadecimal
1af8817
20
Vigesimal
8gf22f
36
Base36
gu5nb
md5
429d017fd449ea3053747a79c1c236dd
sha1
51e83cf16c9a1c03221353c58a939d0af4fa2d86
sha256
f1e6b989ca8ee9007745cdb4ac42a6f5bf2b91d030a64ebf3fa17635db5605ab
sha512
e87c45abbd6d6114ea8080d81d0892d55739b9f80537d04ca27f0288488b486279359d295f6705ad3f22a93746677314ba5e9dde45f2d1c096f44aae49d4925a
ripemd-160
50eb0d25bd28062b892982ed8c2b33f853d71dc6
Diameter
56561710
Circumference
177693852.61048
Area
2.5126670400341E+15
Volume
9.4747162963312E+22
Surface area
1.0050668160137E+16
Circumference
177693852.61048
Perimeter
113123420
Area
799806759531025
Diagonal
39995168.696507
Surface area
4798840557186150
Volume
2.2619218994317E+22
Space diagonal
48983877.741488
Perimeter
84842565
Area
3.4632648593619E+14
Altitude
24491938.870744
Surface area
3.4632648593619E+14
Volume
2.6657005226708E+21
Height
13331722.898836