28278321 is an odd 8-digits composite number following 28278320
and preceding 28278322 . In scientific notation, it is written as 2.8278321 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 18852212 positive integers (up to 28278321) that are relatively prime to 28278321.
28278321 has 4 divisors, whose sum is 37704432
The reverse of 28278321 is 12387282
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million two hundred seventy-eight thousand three hundred twenty-one
Scientific notation
2.8278321 × 10^7
Engineering notation
2.8278321 × 10^6
Prime Factorization
3 × 9426107
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28278321
Product of the distinct prime numbers
The prime factorization of 28278321 is 3 × 9426107.
Since it has a total of 2 prime factors.
6 , 6 , 88 , 79 , 110 , 314 , 4187 , 6484 , 89462 , 85400 , 618567 , 589509 , 7048265 , 7586322 , 91396854 , 12774911 , 948142911 , 245968733 , 6351406849 , 5066509582
n×2
56556642
n×3
84834963
n×4
113113284
n×5
141391605
n÷2
14139160.5
n÷3
9426107
n÷3
7069580.25
n÷5
5655664.2
n2
799663438579041
n3
2.2613139408102E+22
n4
6.3946161500006E+29
n5
1.808290081615E+37
2 √n
5317.7364545453
3 √n
304.66170859134
4 √n
72.922811619858
5 √n
30.923648206613
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
-28278320
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 28278321 can be divided by 4 positive divisors.
The sum of these divisors (counting 28278321) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011110111111000110001
3
Ternary
1222012200120020
4
Quaternary
1223313320301
5
Quinary
24214401241
6
Senary
2450034053
8
Octal
153677061
10
Decimal
28278321
12
Duodecimal
9578929
16
Hexadecimal
1af7e31
20
Vigesimal
8gefg1
36
Base36
gu3ox
md5
950e45747db36d4e5fbfc17167ab4ac2
sha1
76d8fca17f830dfe6b7f2c43259aac611268678e
sha256
f64b0fab09713872e6a79fb885f822c2c342532f32f6e8f519cdc74eae5cf7e7
sha512
91b2d9fff99417423f8e6a3437ccd0f390b862bf6c5f682c015cf90d7bce39bcd3669d89a9bd6fe854b4b0471c87aa3f12886fc746f576be3cd83491b0a4cd72
ripemd-160
16270b0bae45e2442e5db979511cc4d42046bd7e
Diameter
56556642
Circumference
177677931.01891
Area
2.5122167839843E+15
Volume
9.4721696852126E+22
Surface area
1.0048867135937E+16
Circumference
177677931.01891
Perimeter
113113284
Area
799663438579041
Diagonal
39991585.07934
Surface area
4797980631474246
Volume
2.2613139408102E+22
Space diagonal
48979488.724742
Perimeter
84834963
Area
3.4626442614353E+14
Altitude
24489744.362371
Surface area
3.4626442614353E+14
Volume
2.6649840365643E+21
Height
13330528.35978