28278538 is an even 8-digits composite number following 28278537
and preceding 28278539 . In scientific notation, it is written as 2.8278538 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 13651680 positive integers (up to 28278538) that are relatively prime to 28278538.
28278538 has 8 divisors, whose sum is 43880580
The reverse of 28278538 is 83587282
Previous prime number is 29
Is Prime? no Number parity even Number length 8 Sum of Digits 43 Digital Root 7
Name
twenty-eight million two hundred seventy-eight thousand five hundred thirty-eight
Scientific notation
2.8278538 × 10^7
Engineering notation
2.8278538 × 10^6
Prime Factorization
2 × 29 × 487561
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
28278538 Product of the distinct prime numbers
The prime factorization of 28278538 is 2 × 29 × 487561.
Since it has a total of 3 prime factors.
10 , 10 , 57 , 97 , 741 , 962 , 2800 , 1757 , 99533 , 72189 , 379865 , 620340 , 9178804 , 8266545 , 796909 , 39462164 , 226514256 , 586499834 , 4631749890 , 8322634031
n×2
56557076
n×3
84835614
n×4
113114152
n×5
141392690
n÷2
14139269
n÷3
9426179.3333333
n÷3
7069634.5
n÷5
5655707.6
n2
799675711417444
n3
2.2613659992995E+22
n4
6.39481243431E+29
n5
1.8083594642651E+37
2 √n5317.7568579242
3 √n304.66248788586
4 √n72.922951516818
5 √n30.923695666369
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
-28278537 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 28278538 can be divided by 8 positive divisors.
The sum of these divisors (counting 28278538) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011110111111100001010
3
Ternary
1222012200212021
4
Quaternary
1223313330022
5
Quinary
24214403123
6
Senary
2450035054
8
Octal
153677412
10
Decimal
28278538
12
Duodecimal
9578a8a
16
Hexadecimal
1af7f0a
20
Vigesimal
8geg6i
36
Base36
gu3uy
md5
c099fa5a93e3974343f0e17759b3fff6
sha1
e6a1fedd821842988b4337d1412503bc715516e6
sha256
357082308a72703e7616ee9faf6f8bab5c7cddb31844dae6ff1f6a4e46b9f86a
sha512
c03411f924f529f4c5fe8791923d233e964f08ce93e0b85c51e4d0cfcdea02d06336dd2cbe993f7f24dce93abac47255808905f55b682c892e5768f0bd862562
ripemd-160
36253c6afcd57d80c0ff82ef0cdcb3e62bf9f7ac
Diameter
56557076
Circumference
177679294.47012
Area
2.5122553402432E+15
Volume
9.4723877473028E+22
Surface area
1.0049021360973E+16
Circumference
177679294.47012
Perimeter
113114152
Area
799675711417444
Diagonal
39991891.963683
Surface area
4798054268504664
Volume
2.2613659992995E+22
Space diagonal
48979864.579767
Perimeter
84835614
Area
3.4626974043845E+14
Altitude
24489932.289884
Surface area
3.4626974043845E+14
Volume
2.6650453880823E+21
Height
13330630.654561