28017989 is an odd 8-digits composite number following 28017988
and preceding 28017990 . In scientific notation, it is written as 2.8017989 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 24981696 positive integers (up to 28017989) that are relatively prime to 28017989.
28017989 has 4 divisors, whose sum is 28105056
The reverse of 28017989 is 98971082
Previous prime number is 323
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-eight million seventeen thousand nine hundred eighty-nine
Scientific notation
2.8017989 × 10^7
Engineering notation
2.8017989 × 10^6
Prime Factorization
323 × 86743
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28017989
Product of the distinct prime numbers
The prime factorization of 28017989 is 323 × 86743.
Since it has a total of 2 prime factors.
4 , 1 , 94 , 69 , 418 , 712 , 5589 , 1693 , 82430 , 21009 , 450041 , 479970 , 8006381 , 2232694 , 93352254 , 98679040 , 570441764 , 818748787 , 3986191039 , 7501264660
n×2
56035978
n×3
84053967
n×4
112071956
n×5
140089945
n÷2
14008994.5
n÷3
9339329.6666667
n÷3
7004497.25
n÷5
5603597.8
n2
785007707604121
n3
2.1994337316567E+22
n4
6.1623710099788E+29
n5
1.726572431715E+37
2 √n
5293.2021499278
3 √n
303.72391326488
4 √n
72.754396086613
5 √n
30.866500365004
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
-28017988
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 28017989 can be divided by 4 positive divisors.
The sum of these divisors (counting 28017989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010111000010101000101
3
Ternary
1221201110110022
4
Quaternary
1222320111011
5
Quinary
24133033424
6
Senary
2440304525
8
Octal
152702505
10
Decimal
28017989
12
Duodecimal
9472145
16
Hexadecimal
1ab8545
20
Vigesimal
8f24j9
36
Base36
goith
md5
74b161eebcb274060a03f9ba61f8604e
sha1
43b1af8da37c93e6d87cfad51601ae7b2c0639c6
sha256
5e0ffc4a4512128381ec4ff226466a102d0cdd3c0b5dbb153db8f023f3f7743e
sha512
f7384e4bb1c8cb44654d7c955ba11bccf3db6dc32ad13c2be9e6322269f086e7c247ce89799af1b572825b7ad2dc7ea39a929b786fbb0b1f8c14926e16e68bdb
ripemd-160
1f10904a2dd29b11beea60eea8f93024bccc91fd
Diameter
56035978
Circumference
176042216.82152
Area
2.4661744472205E+15
Volume
9.2129664712406E+22
Surface area
9.8646977888819E+15
Circumference
176042216.82152
Perimeter
112071956
Area
785007707604121
Diagonal
39623420.03422
Surface area
4710046245624726
Volume
2.1994337316567E+22
Space diagonal
48528580.473906
Perimeter
84053967
Area
3.3991830847588E+14
Altitude
24264290.236953
Surface area
3.3991830847588E+14
Volume
2.5920575107082E+21
Height
13207806.678073