28998009 is an odd 8-digits composite number following 28998008
and preceding 28998010 . In scientific notation, it is written as 2.8998009 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 17107200 positive integers (up to 28998009) that are relatively prime to 28998009.
28998009 has 32 divisors, whose sum is 36230400
The reverse of 28998009 is 90089982
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-eight million nine hundred ninety-eight thousand nine
Scientific notation
2.8998009 × 10^7
Engineering notation
2.8998009 × 10^6
Prime Factorization
9 × 19 × 23 × 73 × 101
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
28998009
Product of the distinct prime numbers
The prime factorization of 28998009 is 9 × 19 × 23 × 73 × 101.
Since it has a total of 5 prime factors.
10 , 4 , 8 , 40 , 908 , 15 , 1287 , 4587 , 20107 , 54833 , 723369 , 983475 , 792721 , 8150293 , 2731207 , 87602148 , 68526112 , 222942821 , 4358791036 , 9447072301
n×2
57996018
n×3
86994027
n×4
115992036
n×5
144990045
n÷2
14499004.5
n÷3
9666003
n÷3
7249502.25
n÷5
5799601.8
n2
840884525964081
n3
2.4383977051867E+22
n4
7.0708678600584E+29
n5
2.0504108984378E+37
2 √n
5384.9799442523
3 √n
307.22465139296
4 √n
73.382422583697
5 √n
31.079472284257
1 , 9 , 19 , 23 , 73 , 101 , 171 , 207 , 437 , 657 , 909 , 1387 , 1679 , 1919 , 2323 , 3933 , 7373 , 12483 , 15111 , 17271 , 20907 , 31901 , 44137 , 66357 , 140087 , 169579 , 287109 , 397233 , 1260783 , 1526211 , 3222001 , 28998009
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
-28998008
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 28998009 can be divided by 32 positive divisors.
The sum of these divisors (counting 28998009) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101110100111100101111001
3
Ternary
2000120020210100
4
Quaternary
1232213211321
5
Quinary
24410414014
6
Senary
2513310013
8
Octal
156474571
10
Decimal
28998009
12
Duodecimal
9865309
16
Hexadecimal
1ba7979
20
Vigesimal
914f09
36
Base36
h9j09
md5
9d8cfbd734c2994cc310c2aa54f9aa69
sha1
1a65d0dde43b711113c7c77f69063f686c0ebb4f
sha256
da30496267e3dc8c3db112640de8eb19b72a9ccee502d9fa446cfceee9767717
sha512
23adeacb39733941770cfd8b5a0952c2fd7e71cd8af9cf6b0dc6bed53e36d243d9996ea2cd9d786db7fb1f3777a3821ae75901f7cea07ebfdf9410b9a21a8bb1
ripemd-160
15e5745df36cf2dc8769902c360d2a1398e340c5
Diameter
57996018
Circumference
182199864.08626
Area
2.6417166492861E+15
Volume
1.021393642286E+23
Surface area
1.0566866597144E+16
Circumference
182199864.08626
Perimeter
115992036
Area
840884525964081
Diagonal
41009377.609617
Surface area
5045307155784486
Volume
2.4383977051867E+22
Space diagonal
50226024.90634
Perimeter
86994027
Area
3.6411368056706E+14
Altitude
25113012.45317
Surface area
3.6411368056706E+14
Volume
2.8736792542787E+21
Height
13669792.536539