28006918 is an even 8-digits composite number following 28006917
and preceding 28006919 . In scientific notation, it is written as 2.8006918 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 13983000 positive integers (up to 28006918) that are relatively prime to 28006918.
28006918 has 8 divisors, whose sum is 42071760
The reverse of 28006918 is 81960082
Previous prime number is 709
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million six thousand nine hundred eighteen
Scientific notation
2.8006918 × 10^7
Engineering notation
2.8006918 × 10^6
Prime Factorization
2 × 709 × 19751
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28006918
Product of the distinct prime numbers
The prime factorization of 28006918 is 2 × 709 × 19751.
Since it has a total of 3 prime factors.
5 , 9 , 74 , 30 , 107 , 293 , 1762 , 2452 , 6011 , 49690 , 317472 , 990861 , 1106332 , 3983316 , 90871471 , 89223417 , 359958525 , 741776915 , 5302037171 , 8183869722
n×2
56013836
n×3
84020754
n×4
112027672
n×5
140034590
n÷2
14003459
n÷3
9335639.3333333
n÷3
7001729.5
n÷5
5601383.6
n2
784387455858724
n3
2.1968275156464E+22
n4
6.1526368090852E+29
n5
1.7231639459583E+37
2 √n
5292.1562713132
3 √n
303.6839036074
4 √n
72.747207996687
5 √n
30.864060667783
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28006917
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28006918 can be divided by 8 positive divisors.
The sum of these divisors (counting 28006918) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110101101000000110
3
Ternary
1221200220021021
4
Quaternary
1222311220012
5
Quinary
24132210133
6
Senary
2440141354
8
Octal
152655006
10
Decimal
28006918
12
Duodecimal
946785a
16
Hexadecimal
1ab5a06
20
Vigesimal
8f0h5i
36
Base36
goa9y
md5
7520e4818bbe90a21c5aa130bd5491bd
sha1
420a4f3879f923f023651980f5b24a55272eee8d
sha256
0c2d42dabc4a583d0a7df5619c20a09c68be5cd9cba26f92d126bbfd74db9d95
sha512
3885faf89b77e631a0946250ac4c504196f67187878449006d36c7abd561e2443dca0443b37e245fb6b4b941c3aada33d164fd24ec188e94518e894d05fea837
ripemd-160
1f1563ba048052268260781d71b5665d38ecb1d4
Diameter
56013836
Circumference
175972655.67698
Area
2.4642258688938E+15
Volume
9.2020495791448E+22
Surface area
9.856903475575E+15
Circumference
175972655.67698
Perimeter
112027672
Area
784387455858724
Diagonal
39607763.275871
Surface area
4706324735152344
Volume
2.1968275156464E+22
Space diagonal
48509404.939415
Perimeter
84020754
Area
3.3964973159175E+14
Altitude
24254702.469708
Surface area
3.3964973159175E+14
Volume
2.5889860556846E+21
Height
13202587.758624