28993 is an odd 5-digits composite number following 28992
and preceding 28994 . In scientific notation, it is written as 2.8993 × 10^4.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 28548 positive integers (up to 28993) that are relatively prime to 28993.
28993 has 4 divisors, whose sum is 29440
The reverse of 28993 is 39982
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 31
Digital Root 4
Name
twenty-eight thousand nine hundred ninety-three
Scientific notation
2.8993 × 10^4
Engineering notation
2.8993 × 10^3
Prime Factorization
79 × 367
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28993
Product of the distinct prime numbers
The prime factorization of 28993 is 79 × 367.
Since it has a total of 2 prime factors.
2 , 10 , 63 , 47 , 457 , 50 , 8353 , 5372 , 73746 , 2409 , 281094 , 673864 , 1787510 , 7180753 , 62787609 , 78729425 , 221530981 , 432723939 , 1602106647 , 7853398558
n×2
57986
n×3
86979
n×4
115972
n×5
144965
n÷2
14496.5
n÷3
9664.3333333333
n÷3
7248.25
n÷5
5798.6
n2
840594049
n3
24371343262657
n4
706598355214214401
n5
2.0486406112726E+22
2 √n
170.27330971118
3 √n
30.720696078882
4 √n
13.048881550201
5 √n
7.8065407508551
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
-28992
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 28993 can be divided by 4 positive divisors.
The sum of these divisors (counting 28993) is 1, the average is 0.25.
Base
System
Value
2
Binary
111000101000001
3
Ternary
1110202211
4
Quaternary
13011001
5
Quinary
1411433
6
Senary
342121
8
Octal
70501
10
Decimal
28993
12
Duodecimal
14941
16
Hexadecimal
7141
20
Vigesimal
3c9d
36
Base36
mdd
md5
f4431fbd60ca4a4e72238472ebb7c421
sha1
5dbcb4a5cdcc5fb2e7c4cda0fd7cb109f27055f6
sha256
d32e2eaf09d3bf3328f6485ba7f6c1590421099eb2c548a3c67ed92a6042b0cd
sha512
f2c359a8be645ebfd30f18485293238d9f224f7f30587cfd000015a2fe1345dd56fe62282bbba50f8a354918534e2a717ca724c62a89e7c005383b722d85eb4b
ripemd-160
cd2542b73ccb6c5d02a45a7c54e2e9389a83ffc2
Diameter
57986
Circumference
182168.39161106
Area
2640804088.9897
Volume
1.020864439361E+14
Surface area
10563216355.959
Circumference
182168.39161106
Perimeter
115972
Area
840594049
Diagonal
41002.293813883
Surface area
5043564294
Volume
24371343262657
Space diagonal
50217.349063844
Perimeter
86979
Area
363987900.35201
Altitude
25108.674531922
Surface area
363987900.35201
Volume
2872190347941.6
Height
13667.431271294