28909 is an odd 5-digits prime number following 28908
and preceding 28910 . In scientific notation, it is written as 2.8909 × 10^4.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 28908 positive integers (up to 28909) that are relatively prime to 28909.
28909 has 2 divisors, whose sum is 28910
The reverse of 28909 is 90982
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 5
Sum of Digits 28
Digital Root 1
Name
twenty-eight thousand nine hundred nine
Scientific notation
2.8909 × 10^4
Engineering notation
2.8909 × 10^3
Prime Factorization
28909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28909
Product of the distinct prime numbers
The prime factorization of 28909 is 28909.
Since it has a total of 1 prime factors.
6 , 5 , 97 , 63 , 533 , 473 , 2105 , 6498 , 83443 , 60578 , 402652 , 394967 , 8190026 , 5906774 , 118296 , 92007645 , 343047171 , 231648842 , 9731335960 , 5250487819
n×2
57818
n×3
86727
n×4
115636
n×5
144545
n÷2
14454.5
n÷3
9636.3333333333
n÷3
7227.25
n÷5
5781.8
n2
835730281
n3
24160126693429
n4
698445102580338961
n5
2.0191349470495E+22
2 √n
170.0264685277
3 √n
30.690998857188
4 √n
13.039419792602
5 √n
7.8020119977416
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14455
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
170.02940922088
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999308197855
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28909 can be divided by 2 positive divisors.
The sum of these divisors (counting 28909) is 28910, the average is 14455.
Base
System
Value
2
Binary
111000011101101
3
Ternary
1110122201
4
Quaternary
13003231
5
Quinary
1411114
6
Senary
341501
8
Octal
70355
10
Decimal
28909
12
Duodecimal
14891
16
Hexadecimal
70ed
20
Vigesimal
3c59
36
Base36
mb1
md5
bcb35e73c974a4ba0b5685dbd875c2fa
sha1
f2951dd4aa82445e83720b969432995aa31f244b
sha256
dc2787f782aa94f497685fc5f15cf6fa3da7ebc048788c91df82a680a2ffe7cd
sha512
407b00715ae1f429d8307ae0d2ea5f09d6ecf9f8e2ed480477c2bc2a1d31c4b8e67eef961f199c6609d06f779612082121e06e6648f9d9bcf0222f0b890c655f
ripemd-160
4c541985eb576a9c72d8f5cc895a6553fddaccbc
Diameter
57818
Circumference
181640.60404525
Area
2625524111.1721
Volume
1.0120170203983E+14
Surface area
10502096444.689
Circumference
181640.60404525
Perimeter
115636
Area
835730281
Diagonal
40883.499874644
Surface area
5014381686
Volume
24160126693429
Space diagonal
50071.856796009
Perimeter
86727
Area
361881827.02895
Altitude
25035.928398004
Surface area
361881827.02895
Volume
2847298236541.6
Height
13627.833291548