28003885 is an odd 8-digits composite number following 28003884
and preceding 28003886 . In scientific notation, it is written as 2.8003885 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 17725248 positive integers (up to 28003885) that are relatively prime to 28003885.
28003885 has 16 divisors, whose sum is 41360256
The reverse of 28003885 is 58830082
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million three thousand eight hundred eighty-five
Scientific notation
2.8003885 × 10^7
Engineering notation
2.8003885 × 10^6
Prime Factorization
5 × 13 × 7 × 61547
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28003885
Product of the distinct prime numbers
The prime factorization of 28003885 is 5 × 13 × 7 × 61547.
Since it has a total of 4 prime factors.
7 , 3 , 53 , 100 , 708 , 213 , 5540 , 7264 , 24677 , 43029 , 860743 , 256649 , 3547339 , 3725477 , 15977620 , 96055354 , 177668639 , 816685753 , 5091204931 , 564422884
n×2
56007770
n×3
84011655
n×4
112015540
n×5
140019425
n÷2
14001942.5
n÷3
9334628.3333333
n÷3
7000971.25
n÷5
5600777
n2
784217575093225
n3
2.196113878789E+22
n4
6.149972050851E+29
n5
1.7222311006524E+37
2 √n
5291.8697073908
3 √n
303.67294076207
4 √n
72.74523838294
5 √n
30.863392156158
1 , 5 , 7 , 13 , 35 , 65 , 91 , 455 , 61547 , 307735 , 430829 , 800111 , 2154145 , 4000555 , 5600777 , 28003885
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
-28003884
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 28003885 can be divided by 16 positive divisors.
The sum of these divisors (counting 28003885) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101010110100111000101101
3
Ternary
1221200202002221
4
Quaternary
1222310320231
5
Quinary
24132111020
6
Senary
2440115341
8
Octal
152647055
10
Decimal
28003885
12
Duodecimal
9465b51
16
Hexadecimal
1ab4e2d
20
Vigesimal
8f09e5
36
Base36
go7xp
md5
c16d44d47c75368fbb352723c0682a49
sha1
c832c5ef7d29390941d332bbbf59fe9a9ee84829
sha256
2934d9d80119e29c5b9b6fe4452bbf573a9eafdcd3b7eacd6df2e24ea82fff19
sha512
5f71cc1062f2e58c1d6e29dd26eea9bc1c63a0f1df8f6d51f576f6f91ac66f9a6bf72407ee210848133542b8fd73d180bace5611c2e0f3b2708fb94f3ef0634e
ripemd-160
c51007654bd4702f9930a8ab75a78c12eb4d6140
Diameter
56007770
Circumference
175953598.77595
Area
2.4636921727289E+15
Volume
9.1990603040666E+22
Surface area
9.8547686909155E+15
Circumference
175953598.77595
Perimeter
112015540
Area
784217575093225
Diagonal
39603473.966136
Surface area
4705305450559350
Volume
2.196113878789E+22
Space diagonal
48504151.629316
Perimeter
84011655
Area
3.3957617106248E+14
Altitude
24252075.814658
Surface area
3.3957617106248E+14
Volume
2.5881450265826E+21
Height
13201157.988712