28931009 is an odd 8-digits composite number following 28931008
and preceding 28931010 . In scientific notation, it is written as 2.8931009 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 27538000 positive integers (up to 28931009) that are relatively prime to 28931009.
28931009 has 8 divisors, whose sum is 30352320
The reverse of 28931009 is 90013982
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million nine hundred thirty-one thousand nine
Scientific notation
2.8931009 × 10^7
Engineering notation
2.8931009 × 10^6
Prime Factorization
29 × 71 × 14051
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28931009
Product of the distinct prime numbers
The prime factorization of 28931009 is 29 × 71 × 14051.
Since it has a total of 3 prime factors.
4 , 3 , 49 , 94 , 684 , 360 , 6606 , 2040 , 32743 , 7103 , 714813 , 519924 , 2514619 , 5643963 , 88669455 , 10148147 , 678968277 , 432926905 , 917168739 , 1132599619
n×2
57862018
n×3
86793027
n×4
115724036
n×5
144655045
n÷2
14465504.5
n÷3
9643669.6666667
n÷3
7232752.25
n÷5
5786201.8
n2
837003281758081
n3
2.4215349477573E+22
n4
7.005744936738E+29
n5
2.0268326981647E+37
2 √n
5378.7553392955
3 √n
306.98785438622
4 √n
73.339998222631
5 √n
31.065097146967
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28931008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931009 can be divided by 8 positive divisors.
The sum of these divisors (counting 28931009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010111001111000001
3
Ternary
2000102211212212
4
Quaternary
1232113033001
5
Quinary
24401243014
6
Senary
2512031505
8
Octal
156271701
10
Decimal
28931009
12
Duodecimal
9832595
16
Hexadecimal
1b973c1
20
Vigesimal
90g7a9
36
Base36
h83b5
md5
d9022de355840eb5699bb2207ece1cf9
sha1
207ca32c79c48fcd74612c350307515ec0604784
sha256
863069e715349c20f51ea38889f2a44080ec15f1503fe6e001b1ceba4efcc82b
sha512
36f6abc750898e6b9008e13e6fe0003ad256a2cae776f72faebba2eb72f6a014c7d56f8e23f05ecf8eff749b4b009303f51b40fae0f14849fe016a82413bcd99
ripemd-160
a61cefe3b2e425de17165076decd0a60bcff9046
Diameter
57862018
Circumference
181778890.67068
Area
2.6295233610017E+15
Volume
1.0143301869714E+23
Surface area
1.0518093444007E+16
Circumference
181778890.67068
Perimeter
115724036
Area
837003281758081
Diagonal
40914625.300938
Surface area
5022019690548486
Volume
2.4215349477573E+22
Space diagonal
50109977.502232
Perimeter
86793027
Area
3.6243305252672E+14
Altitude
25054988.751116
Surface area
3.6243305252672E+14
Volume
2.8538063040656E+21
Height
13638208.433646