28131519 is an odd 8-digits composite number following 28131518
and preceding 28131520 . In scientific notation, it is written as 2.8131519 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 17311680 positive integers (up to 28131519) that are relatively prime to 28131519.
28131519 has 4 divisors, whose sum is 28852880
The reverse of 28131519 is 91513182
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-eight million one hundred thirty-one thousand five hundred nineteen
Scientific notation
2.8131519 × 10^7
Engineering notation
2.8131519 × 10^6
Prime Factorization
39 × 721321
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28131519
Product of the distinct prime numbers
The prime factorization of 28131519 is 39 × 721321.
Since it has a total of 2 prime factors.
7 , 2 , 45 , 61 , 642 , 156 , 6387 , 6504 , 16172 , 37918 , 230703 , 847773 , 6345139 , 8610969 , 71648346 , 66851074 , 867239164 , 111396346 , 4224549531 , 4683596344
n×2
56263038
n×3
84394557
n×4
112526076
n×5
140657595
n÷2
14065759.5
n÷3
9377173
n÷3
7032879.75
n÷5
5626303.8
n2
791382361247361
n3
2.2262787931695E+22
n4
6.2628604169345E+29
n5
1.7618377681334E+37
2 √n
5303.9154405024
3 √n
304.13359418564
4 √n
72.827985283835
5 √n
30.891474375622
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
-28131518
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 28131519 can be divided by 4 positive divisors.
The sum of these divisors (counting 28131519) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011010100000010111111
3
Ternary
1221221020012010
4
Quaternary
1223110002333
5
Quinary
24200202034
6
Senary
2442542303
8
Octal
153240277
10
Decimal
28131519
12
Duodecimal
9507993
16
Hexadecimal
1ad40bf
20
Vigesimal
8fg8fj
36
Base36
gqyf3
md5
a7f218e2023a0b1d844f079eb90e174b
sha1
0056c393779c11d77f6a56cae86fdbb449e2aa71
sha256
02d41ee6dc457f563a405e33971b58f8e13a9c1388709c3514c2d0b239b74fae
sha512
e7a5f4b3185173241b46bb25347499b723c903657b9a405bed8a81cc3bc1d62f58b6af60960484f4d622a08c7c66e379e16973fda1bc147fe3505aab361f803a
ripemd-160
10b26e0a36a8f9764c92b4cbfc2ac1c564899be2
Diameter
56263038
Circumference
176755546.84944
Area
2.4862010122753E+15
Volume
9.3254148019521E+22
Surface area
9.944804049101E+15
Circumference
176755546.84944
Perimeter
112526076
Area
791382361247361
Diagonal
39783975.699956
Surface area
4748294167484166
Volume
2.2262787931695E+22
Space diagonal
48725220.202089
Perimeter
84394557
Area
3.4267861447356E+14
Altitude
24362610.101045
Surface area
3.4267861447356E+14
Volume
2.6236947191033E+21
Height
13261325.233319