28285909 is an odd 8-digits composite number following 28285908
and preceding 28285910 . In scientific notation, it is written as 2.8285909 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 26622016 positive integers (up to 28285909) that are relatively prime to 28285909.
28285909 has 4 divisors, whose sum is 29949804
The reverse of 28285909 is 90958282
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million two hundred eighty-five thousand nine hundred nine
Scientific notation
2.8285909 × 10^7
Engineering notation
2.8285909 × 10^6
Prime Factorization
17 × 1663877
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28285909
Product of the distinct prime numbers
The prime factorization of 28285909 is 17 × 1663877.
Since it has a total of 2 prime factors.
4 , 5 , 49 , 23 , 225 , 465 , 6204 , 6720 , 17545 , 40729 , 599484 , 901161 , 2979755 , 156143 , 88254722 , 12959226 , 674405208 , 287285585 , 6337714071 , 2392029882
n×2
56571818
n×3
84857727
n×4
113143636
n×5
141429545
n÷2
14142954.5
n÷3
9428636.3333333
n÷3
7071477.25
n÷5
5657181.8
n2
800092647956281
n3
2.263134783166E+22
n4
6.4014824531369E+29
n5
1.8107175013453E+37
2 √n
5318.4498681477
3 √n
304.68895639365
4 √n
72.927703022567
5 √n
30.925307594107
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
-28285908
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 28285909 can be divided by 4 positive divisors.
The sum of these divisors (counting 28285909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011111001101111010101
3
Ternary
1222020001222021
4
Quaternary
1223321233111
5
Quinary
24220122114
6
Senary
2450133141
8
Octal
153715725
10
Decimal
28285909
12
Duodecimal
95811b1
16
Hexadecimal
1af9bd5
20
Vigesimal
8gfef9
36
Base36
gu9jp
md5
875df5ffcfbaaabc908bfc269a7c876a
sha1
ba69a3025c84bc24993e6118c125672b1915eeef
sha256
66ab2e25080d6aacd449e843756c534bafdeb011a9f3f90ca1a860b9cf76ecca
sha512
ca4f5c104f9c35778d1b3e7c7d73fc03b6f958555fdf7fe1f1159571863b958fe4522fce4478497d67533988cd5a2f44cfec2ce3067a0d8cd18e803b02843a63
ripemd-160
e5924c93c16e74ae19489bf7572515c78192d46c
Diameter
56571818
Circumference
177725607.82902
Area
2.5135651850107E+15
Volume
9.4797968118373E+22
Surface area
1.0054260740043E+16
Circumference
177725607.82902
Perimeter
113143636
Area
800092647956281
Diagonal
40002316.131851
Surface area
4800555887737686
Volume
2.263134783166E+22
Space diagonal
48992631.52627
Perimeter
84857727
Area
3.4645027925565E+14
Altitude
24496315.763135
Surface area
3.4645027925565E+14
Volume
2.6671299198598E+21
Height
13334105.377284