28305489 is an odd 8-digits composite number following 28305488
and preceding 28305490 . In scientific notation, it is written as 2.8305489 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 18870324 positive integers (up to 28305489) that are relatively prime to 28305489.
28305489 has 4 divisors, whose sum is 37740656
The reverse of 28305489 is 98450382
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million three hundred five thousand four hundred eighty-nine
Scientific notation
2.8305489 × 10^7
Engineering notation
2.8305489 × 10^6
Prime Factorization
3 × 9435163
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28305489
Product of the distinct prime numbers
The prime factorization of 28305489 is 3 × 9435163.
Since it has a total of 2 prime factors.
9 , 6 , 30 , 34 , 6 , 263 , 4791 , 6319 , 23952 , 26785 , 90430 , 797550 , 3471231 , 5881900 , 23048261 , 22389841 , 893546499 , 303022813 , 9698882408 , 4937441853
n×2
56610978
n×3
84916467
n×4
113221956
n×5
141527445
n÷2
14152744.5
n÷3
9435163
n÷3
7076372.25
n÷5
5661097.8
n2
801200707529121
n3
2.2678377813758E+22
n4
6.4192257374516E+29
n5
1.8169932349995E+37
2 √n
5320.2903116277
3 √n
304.75924384961
4 √n
72.940320205136
5 √n
30.92958781669
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
-28305488
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 28305489 can be divided by 4 positive divisors.
The sum of these divisors (counting 28305489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011111110100001010001
3
Ternary
1222021001211110
4
Quaternary
1223332201101
5
Quinary
24221233424
6
Senary
2450403533
8
Octal
153764121
10
Decimal
28305489
12
Duodecimal
95905a9
16
Hexadecimal
1afe851
20
Vigesimal
8gi3e9
36
Base36
guonl
md5
a8bad426c8799d965f5205412804ec9c
sha1
d9c9f10cea2118e33ac7eb128cd4e0b97327ac7b
sha256
c258eef66ca155e90631d05bdc0e458c13848c0572b176959933b27fc5b40489
sha512
d9a1d0ce1a5ff53c6dc0d20ec69bcb8e49bad41423cf43be355fc1d7c954682b75d68a5b1e17783c12ae76dd72ae2f59db5d320e815f451896217e31b64bdcd5
ripemd-160
d59e4a1ff933f1abf86ee11e1f92c6e2b424a06d
Diameter
56610978
Circumference
177848632.59733
Area
2.5170462568244E+15
Volume
9.4994966846713E+22
Surface area
1.0068185027298E+16
Circumference
177848632.59733
Perimeter
113221956
Area
801200707529121
Diagonal
40030006.433402
Surface area
4807204245174726
Volume
2.2678377813758E+22
Space diagonal
49026545.081082
Perimeter
84916467
Area
3.4693008312514E+14
Altitude
24513272.540541
Surface area
3.4693008312514E+14
Volume
2.6726724564031E+21
Height
13343335.477801