28018906 is an even 8-digits composite number following 28018905
and preceding 28018907 . In scientific notation, it is written as 2.8018906 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 13991328 positive integers (up to 28018906) that are relatively prime to 28018906.
28018906 has 8 divisors, whose sum is 42082740
The reverse of 28018906 is 60981082
Previous prime number is 809
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million eighteen thousand nine hundred six
Scientific notation
2.8018906 × 10^7
Engineering notation
2.8018906 × 10^6
Prime Factorization
2 × 809 × 17317
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28018906
Product of the distinct prime numbers
The prime factorization of 28018906 is 2 × 809 × 17317.
Since it has a total of 3 prime factors.
7 , 5 , 65 , 93 , 359 , 632 , 5424 , 2124 , 91061 , 77095 , 41229 , 451011 , 5318195 , 4262207 , 18690036 , 57604488 , 275854504 , 645189191 , 7636208741 , 9767961067
n×2
56037812
n×3
84056718
n×4
112075624
n×5
140094530
n÷2
14009453
n÷3
9339635.3333333
n÷3
7004726.5
n÷5
5603781.2
n2
785059093436836
n3
2.1996496943452E+22
n4
6.1631778018787E+29
n5
1.7268549949213E+37
2 √n
5293.2887697536
3 √n
303.72722675263
4 √n
72.75499137347
5 √n
30.86670240813
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
-28018905
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 28018906 can be divided by 8 positive divisors.
The sum of these divisors (counting 28018906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010111000100011011010
3
Ternary
1221201111201021
4
Quaternary
1222320203122
5
Quinary
24133101111
6
Senary
2440313054
8
Octal
152704332
10
Decimal
28018906
12
Duodecimal
947278a
16
Hexadecimal
1ab88da
20
Vigesimal
8f2756
36
Base36
gojiy
md5
bd5b8cc2850fc2f6b47c96f6b5ccf213
sha1
b86761b366d938997a7ad6055f1752c6dcc159ad
sha256
6d29396fb707bf95d5919064177019b4a74d491d08888aee99f2dc8b9d068dcb
sha512
139877bb595c9c71a040cee36c1c33cf9468b6ef22be50f20649af08cbf06f42f42f3062320ae2e3249e703d15327e69dade98cc774adf43f972cdbb4585b49c
ripemd-160
5dc5708d3bd4eb1f50f83466e62974572f9bd31a
Diameter
56037812
Circumference
176047978.50245
Area
2.466335880575E+15
Volume
9.2138710936345E+22
Surface area
9.8653435223001E+15
Circumference
176047978.50245
Perimeter
112075624
Area
785059093436836
Diagonal
39624716.868057
Surface area
4710354560621016
Volume
2.1996496943452E+22
Space diagonal
48530168.764496
Perimeter
84056718
Area
3.3994055919414E+14
Altitude
24265084.382248
Surface area
3.3994055919414E+14
Volume
2.5923120251773E+21
Height
13208238.956019