28181569 is an odd 8-digits composite number following 28181568
and preceding 28181570 . In scientific notation, it is written as 2.8181569 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 26013744 positive integers (up to 28181569) that are relatively prime to 28181569.
28181569 has 4 divisors, whose sum is 30349396
The reverse of 28181569 is 96518182
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million one hundred eighty-one thousand five hundred sixty-nine
Scientific notation
2.8181569 × 10^7
Engineering notation
2.8181569 × 10^6
Prime Factorization
13 × 2167813
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28181569
Product of the distinct prime numbers
The prime factorization of 28181569 is 13 × 2167813.
Since it has a total of 2 prime factors.
3 , 7 , 76 , 50 , 201 , 122 , 5279 , 3782 , 3172 , 43084 , 174973 , 396673 , 2846884 , 9433553 , 59672257 , 22199558 , 150824142 , 66699624 , 4684790505 , 9725934779
n×2
56363138
n×3
84544707
n×4
112726276
n×5
140907845
n÷2
14090784.5
n÷3
9393856.3333333
n÷3
7045392.25
n÷5
5636313.8
n2
794200831301761
n3
2.2381825527188E+22
n4
6.3075496044041E+29
n5
1.7775664439744E+37
2 √n
5308.6315562487
3 √n
304.31385306177
4 √n
72.860356547637
5 √n
30.902458632528
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
-28181568
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 28181569 can be divided by 4 positive divisors.
The sum of these divisors (counting 28181569) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011100000010001000001
3
Ternary
1222000202211211
4
Quaternary
1223200101001
5
Quinary
24203302234
6
Senary
2444010121
8
Octal
153402101
10
Decimal
28181569
12
Duodecimal
9530941
16
Hexadecimal
1ae0441
20
Vigesimal
8g2di9
36
Base36
gs11d
md5
8ac72f23d01262053fc15ba35d2ee6f2
sha1
bbe0476a7dae7a79d2759705b7abe42361d5e2c3
sha256
c53a2b520b3553b4aeb5d69948e09ae14f278ab0280ed5ddceb612d863ce37b9
sha512
d13d240981c54bf99a8985d5fd531a7ad8fd03de077d459bbf85516a1ac7f7ad339a39daf669c07dedcd3d2e4ea8eb4450343e922ed347359036bf630002d12c
ripemd-160
640e239ce7b455228a979aeed6ede3131b18fcb1
Diameter
56363138
Circumference
177070020.27407
Area
2.4950554970925E+15
Volume
9.3752771533523E+22
Surface area
9.9802219883701E+15
Circumference
177070020.27407
Perimeter
112726276
Area
794200831301761
Diagonal
39854757.088753
Surface area
4765204987810566
Volume
2.2381825527188E+22
Space diagonal
48811909.345008
Perimeter
84544707
Area
3.4389904780702E+14
Altitude
24405954.672504
Surface area
3.4389904780702E+14
Volume
2.6377234342681E+21
Height
13284919.029584