28386989 is an odd 8-digits composite number following 28386988
and preceding 28386990 . In scientific notation, it is written as 2.8386989 × 10^7.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 28358880 positive integers (up to 28386989) that are relatively prime to 28386989.
28386989 has 4 divisors, whose sum is 28415100
The reverse of 28386989 is 98968382
Previous prime number is 1049
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
twenty-eight million three hundred eighty-six thousand nine hundred eighty-nine
Scientific notation
2.8386989 × 10^7
Engineering notation
2.8386989 × 10^6
Prime Factorization
1049 × 27061
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28386989
Product of the distinct prime numbers
The prime factorization of 28386989 is 1049 × 27061.
Since it has a total of 2 prime factors.
3 , 7 , 46 , 48 , 223 , 695 , 6306 , 9722 , 52206 , 27030 , 82150 , 932483 , 1924568 , 1453728 , 43713256 , 79729846 , 848720717 , 625910569 , 3053313114 , 6305964927
n×2
56773978
n×3
85160967
n×4
113547956
n×5
141934945
n÷2
14193494.5
n÷3
9462329.6666667
n÷3
7096747.25
n÷5
5677397.8
n2
805821144486121
n3
2.2874835964495E+22
n4
6.4934771690092E+29
n5
1.8433026496842E+37
2 √n
5327.9441626203
3 √n
305.05146135159
4 √n
72.992767878882
5 √n
30.947378452287
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
-28386988
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 28386989 can be divided by 4 positive divisors.
The sum of these divisors (counting 28386989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010010011010101101
3
Ternary
1222102012121222
4
Quaternary
1230102122231
5
Quinary
24231340424
6
Senary
2452233125
8
Octal
154223255
10
Decimal
28386989
12
Duodecimal
960b7a5
16
Hexadecimal
1b126ad
20
Vigesimal
8h8799
36
Base36
gwfjh
md5
496f7b9181df69acd0a2952ad3d5b39b
sha1
90997b480fdb7e3733a2f0494ee7cf468736de5c
sha256
48a5d212f17e98ce11c13153da7882b6b8b6d7318022a4c8a5fac27fe319a27b
sha512
bcb9b1cbdd4bbe9347a66354ebb3cc6184dcaf43e20d7b32d0247793d443ac713c33772379938cbcc4fc68bb10f0f4ed5f23d05a9522102648c0a81d1c9ef7c6
ripemd-160
7bfcce73390b8087a413c8c1fc63226eb3f0ffe2
Diameter
56773978
Circumference
178360712.19987
Area
2.5315617876249E+15
Volume
9.5817888824172E+22
Surface area
1.01262471505E+16
Circumference
178360712.19987
Perimeter
113547956
Area
805821144486121
Diagonal
40145264.838736
Surface area
4834926866916726
Volume
2.2874835964495E+22
Space diagonal
49167707.221899
Perimeter
85160967
Area
3.4893079101582E+14
Altitude
24583853.610949
Surface area
3.4893079101582E+14
Volume
2.695825271504E+21
Height
13381754.946245