28872015 is an odd 8-digits composite number following 28872014
and preceding 28872016 . In scientific notation, it is written as 2.8872015 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 14441856 positive integers (up to 28872015) that are relatively prime to 28872015.
28872015 has 32 divisors, whose sum is 49144320
The reverse of 28872015 is 51027882
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million eight hundred seventy-two thousand fifteen
Scientific notation
2.8872015 × 10^7
Engineering notation
2.8872015 × 10^6
Prime Factorization
3 × 5 × 23 × 53 × 1579
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
28872015
Product of the distinct prime numbers
The prime factorization of 28872015 is 3 × 5 × 23 × 53 × 1579.
Since it has a total of 5 prime factors.
8 , 2 , 91 , 43 , 294 , 909 , 5193 , 8540 , 47579 , 16322 , 326127 , 643169 , 9059359 , 7508489 , 5528266 , 96808337 , 683630210 , 614075999 , 3978227707 , 8261471555
n×2
57744030
n×3
86616045
n×4
115488060
n×5
144360075
n÷2
14436007.5
n÷3
9624005
n÷3
7218003.75
n÷5
5774403
n2
833593250160225
n3
2.4067516822525E+22
n4
6.9487770671269E+29
n5
2.0062519571374E+37
2 √n
5373.2685583358
3 √n
306.77904999372
4 √n
73.302582207831
5 √n
31.052417665387
1 , 3 , 5 , 15 , 23 , 53 , 69 , 115 , 159 , 265 , 345 , 795 , 1219 , 1579 , 3657 , 4737 , 6095 , 7895 , 18285 , 23685 , 36317 , 83687 , 108951 , 181585 , 251061 , 418435 , 544755 , 1255305 , 1924801 , 5774403 , 9624005 , 28872015
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28872014
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28872015 can be divided by 32 positive divisors.
The sum of these divisors (counting 28872015) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101110001000110101001111
3
Ternary
2000022211221220
4
Quaternary
1232020311033
5
Quinary
24342401030
6
Senary
2510454423
8
Octal
156106517
10
Decimal
28872015
12
Duodecimal
9804413
16
Hexadecimal
1b88d4f
20
Vigesimal
90900f
36
Base36
h6tsf
md5
939a89ae9782ac0822f478f17cc5e3f8
sha1
3f25e25d14ca02de447c4fc2429bb5792bcf3c9b
sha256
731c37f43fb9c8856732a80405b75d2625b5a546d30edf9dadd890b9128529ad
sha512
47fcc83cdbba5b6ef9ea2b3f4a4e51f5cb346222ed3caadac0a7a7fb00dc5b13d3d44f18f0c028c69a4916b1cb71da18c6644ed787ec99f118ac6944b2b589d1
ripemd-160
157dc7f4b1e03c8dca121c8d38d0284f675b893b
Diameter
57744030
Circumference
181408220.43667
Area
2.6188104307854E+15
Volume
1.0081377871972E+23
Surface area
1.0475241723142E+16
Circumference
181408220.43667
Perimeter
115488060
Area
833593250160225
Diagonal
40831195.186039
Surface area
5001559500961350
Volume
2.4067516822525E+22
Space diagonal
50007796.896891
Perimeter
86616045
Area
3.60956465531E+14
Altitude
25003898.448445
Surface area
3.60956465531E+14
Volume
2.8363840585881E+21
Height
13610398.395346