28821493 is an odd 8-digits composite number following 28821492
and preceding 28821494 . In scientific notation, it is written as 2.8821493 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 28497568 positive integers (up to 28821493) that are relatively prime to 28821493.
28821493 has 4 divisors, whose sum is 29145420
The reverse of 28821493 is 39412882
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million eight hundred twenty-one thousand four hundred ninety-three
Scientific notation
2.8821493 × 10^7
Engineering notation
2.8821493 × 10^6
Prime Factorization
89 × 323837
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28821493
Product of the distinct prime numbers
The prime factorization of 28821493 is 89 × 323837.
Since it has a total of 2 prime factors.
3 , 1 , 86 , 30 , 845 , 307 , 75 , 1533 , 94207 , 84121 , 572994 , 832151 , 3801632 , 9600157 , 18846199 , 59508883 , 421121918 , 956911912 , 9555116022 , 2311556972
n×2
57642986
n×3
86464479
n×4
115285972
n×5
144107465
n÷2
14410746.5
n÷3
9607164.3333333
n÷3
7205373.25
n÷5
5764298.6
n2
830678458749049
n3
2.3941393384087E+22
n4
6.900267018297E+29
n5
1.9887599756598E+37
2 √n
5368.5652645749
3 √n
306.60000533313
4 √n
73.270493819647
5 √n
31.04154257064
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
-28821492
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 28821493 can be divided by 4 positive divisors.
The sum of these divisors (counting 28821493) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101111100011111110101
3
Ternary
2000020021122201
4
Quaternary
1231330133311
5
Quinary
24334241433
6
Senary
2505424501
8
Octal
155743765
10
Decimal
28821493
12
Duodecimal
979b131
16
Hexadecimal
1b7c7f5
20
Vigesimal
902ded
36
Base36
h5qt1
md5
48ed562828454d94088790b2b975672d
sha1
90efecce4d11501d6ab1e25dd60f97bc790caeb9
sha256
d80746068d216b246d7d01b8c7a7913de14877e66ae5f6209ef42614ddb28abf
sha512
a046c94f3cb08918b7af1e46ee679ebc39def0256ea55d23ff7fb5f6e4cfc8c41e2be388fcd1accc85190537202f7e30714740971bc56bae72932b99c27d1758
ripemd-160
ac29d54684f9b3c880371fb8f212109a00dd4f6c
Diameter
57642986
Circumference
181090781.34858
Area
2.6096533435013E+15
Volume
1.002854740962E+23
Surface area
1.0438613374005E+16
Circumference
181090781.34858
Perimeter
115285972
Area
830678458749049
Diagonal
40759746.288441
Surface area
4984070752494294
Volume
2.3941393384087E+22
Space diagonal
49920290.225991
Perimeter
86464479
Area
3.5969432382659E+14
Altitude
24960145.112995
Surface area
3.5969432382659E+14
Volume
2.8215202688237E+21
Height
13586582.096147