28872009 is an odd 8-digits composite number following 28872008
and preceding 28872010 . In scientific notation, it is written as 2.8872009 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 19248000 positive integers (up to 28872009) that are relatively prime to 28872009.
28872009 has 4 divisors, whose sum is 32080020
The reverse of 28872009 is 90027882
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million eight hundred seventy-two thousand nine
Scientific notation
2.8872009 × 10^7
Engineering notation
2.8872009 × 10^6
Prime Factorization
9 × 3208001
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28872009
Product of the distinct prime numbers
The prime factorization of 28872009 is 9 × 3208001.
Since it has a total of 2 prime factors.
10 , 2 , 61 , 50 , 13 , 514 , 946 , 5584 , 72807 , 3842 , 249263 , 571948 , 4472880 , 7706785 , 39650100 , 59219748 , 566501657 , 589445613 , 2767787306 , 9230882279
n×2
57744018
n×3
86616027
n×4
115488036
n×5
144360045
n÷2
14436004.5
n÷3
9624003
n÷3
7218002.25
n÷5
5774401.8
n2
833592903696081
n3
2.4067501817849E+22
n4
6.9487712909246E+29
n5
2.0062498725052E+37
2 √n
5373.2680000164
3 √n
306.77902874276
4 √n
73.30257839951
5 √n
31.052416374763
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
-28872008
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 28872009 can be divided by 4 positive divisors.
The sum of these divisors (counting 28872009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110001000110101001001
3
Ternary
2000022211221200
4
Quaternary
1232020311021
5
Quinary
24342401014
6
Senary
2510454413
8
Octal
156106511
10
Decimal
28872009
12
Duodecimal
9804409
16
Hexadecimal
1b88d49
20
Vigesimal
909009
36
Base36
h6ts9
md5
8fb6f5cd9d09784bdca33c597dbb45f2
sha1
5bdbf285e5dea90f635f0bff889578473fb00dd7
sha256
a1fa61640a3eddc18a173dd00d2805e25450986254318438214bfc0679fa5896
sha512
2b953fc28d7a5e9355704f305bf862d6522a0f4128e2c6a8a530cd3cc7dd93d8ff73ee9a577b465529e7fdade5c20771df1340cdac96596cfa30829fa1cb2dbe
ripemd-160
b88ddae600c67dad9d6f1e085c3d381b597bade7
Diameter
57744018
Circumference
181408182.73756
Area
2.6188093423362E+15
Volume
1.0081371586829E+23
Surface area
1.0475237369345E+16
Circumference
181408182.73756
Perimeter
115488036
Area
833592903696081
Diagonal
40831186.700758
Surface area
5001557422176486
Volume
2.4067501817849E+22
Space diagonal
50007786.504586
Perimeter
86616027
Area
3.6095631550762E+14
Altitude
25003893.252293
Surface area
3.6095631550762E+14
Volume
2.8363822902701E+21
Height
13610395.566919