28402018 is an even 8-digits composite number following 28402017
and preceding 28402019 . In scientific notation, it is written as 2.8402018 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 14097216 positive integers (up to 28402018) that are relatively prime to 28402018.
28402018 has 8 divisors, whose sum is 42914412
The reverse of 28402018 is 81020482
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-eight million four hundred two thousand eighteen
Scientific notation
2.8402018 × 10^7
Engineering notation
2.8402018 × 10^6
Prime Factorization
2 × 137 × 103657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28402018
Product of the distinct prime numbers
The prime factorization of 28402018 is 2 × 137 × 103657.
Since it has a total of 3 prime factors.
9 , 2 , 73 , 79 , 595 , 557 , 7940 , 6223 , 19415 , 72021 , 674579 , 374239 , 9132981 , 2635426 , 19726064 , 33232090 , 888141859 , 292874521 , 4498104863 , 6348318216
n×2
56804036
n×3
85206054
n×4
113608072
n×5
142010090
n÷2
14201009
n÷3
9467339.3333333
n÷3
7100504.5
n÷5
5680403.6
n2
806674626472324
n3
2.291118726121E+22
n4
6.5072395299426E+29
n5
1.8481873425974E+37
2 √n
5329.3543699026
3 √n
305.10528659254
4 √n
73.002427150764
5 √n
30.950654669322
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
-28402017
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 28402018 can be divided by 8 positive divisors.
The sum of these divisors (counting 28402018) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010110000101100010
3
Ternary
1222102222020121
4
Quaternary
1230112011202
5
Quinary
24232331033
6
Senary
2452430454
8
Octal
154260542
10
Decimal
28402018
12
Duodecimal
961842a
16
Hexadecimal
1b16162
20
Vigesimal
8ha50i
36
Base36
gwr4y
md5
d137c7711427f487f92928adc3e7e67b
sha1
3aa2ac833caec52a72a30028ebaf25a816292efb
sha256
e75cf78856bc9465659e742a2436daa79baf0116b543243749f66c9c80d799db
sha512
bc60da471a59b6bc67d2fa3af389bce79e658759fade6092df845deed9de15375411865d5227311a07f7d873e5dfcea23f83156c52b32b08a082674a45ffc05e
ripemd-160
9faf30067bf962633f2e52f46980de6b727dd771
Diameter
56804036
Circumference
178455142.19185
Area
2.5342430803627E+15
Volume
9.5970156779784E+22
Surface area
1.0136972321451E+16
Circumference
178455142.19185
Perimeter
113608072
Area
806674626472324
Diagonal
40166519.054365
Surface area
4840047758833944
Volume
2.291118726121E+22
Space diagonal
49193738.213486
Perimeter
85206054
Area
3.4930035955668E+14
Altitude
24596869.106743
Surface area
3.4930035955668E+14
Volume
2.7001093129061E+21
Height
13388839.684788