18742918 is an even 8-digits composite number following 18742917
and preceding 18742919 . In scientific notation, it is written as 1.8742918 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 9358104 positive integers (up to 18742918) that are relatively prime to 18742918.
18742918 has 8 divisors, whose sum is 28154448
The reverse of 18742918 is 81924781
Previous prime number is 12613
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighteen million seven hundred forty-two thousand nine hundred eighteen
Scientific notation
1.8742918 × 10^7
Engineering notation
1.8742918 × 10^6
Prime Factorization
2 × 12613 × 743
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18742918
Product of the distinct prime numbers
The prime factorization of 18742918 is 2 × 12613 × 743.
Since it has a total of 3 prime factors.
9 , 8 , 48 , 34 , 164 , 690 , 6003 , 2415 , 7491 , 78750 , 243477 , 884840 , 4107613 , 9179252 , 83830112 , 33026856 , 339950969 , 82771426 , 5263056380 , 1559787951
n×2
37485836
n×3
56228754
n×4
74971672
n×5
93714590
n÷2
9371459
n÷3
6247639.3333333
n÷3
4685729.5
n÷5
3748583.6
n2
351296975154724
n3
6.584330398973E+21
n4
1.2340956475286E+29
n5
2.3130553525785E+36
2 √n
4329.3091827681
3 √n
265.63119031479
4 √n
65.797486143226
5 √n
28.481800560499
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
-18742917
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 18742918 can be divided by 8 positive divisors.
The sum of these divisors (counting 18742918) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000111011111111010000110
3
Ternary
1022021020110011
4
Quaternary
1013133322012
5
Quinary
14244233133
6
Senary
1505420434
8
Octal
107377206
10
Decimal
18742918
12
Duodecimal
633a71a
16
Hexadecimal
11dfe86
20
Vigesimal
5h2h5i
36
Base36
b5q4m
md5
321e30a8ae839b9259be77e2d0e06b76
sha1
61dec774cf365b4188105b123226fb63630aeee4
sha256
d666438e7be7099c16c12cc0e36aab8a24eefe4bbc8672cb594759d3b058a64f
sha512
6fff97c3aeeb153191cca240531eb287f724e0c36b188bdb92aae5e8ebab3aceaa92a5f8903dda86b6c7b8a736290f172feb2031ad8e96fc3a410c62386980f1
ripemd-160
e1c8389187989d5407bafa067c56f1c70ecaef46
Diameter
37485836
Circumference
117765226.99127
Area
1.1036319963744E+15
Volume
2.7580378680295E+22
Surface area
4.4145279854976E+15
Circumference
117765226.99127
Perimeter
74971672
Area
351296975154724
Diagonal
26506488.834047
Surface area
2107781850928344
Volume
6.584330398973E+21
Space diagonal
32463686.258097
Perimeter
56228754
Area
1.5211605237831E+14
Altitude
16231843.129049
Surface area
1.5211605237831E+14
Volume
7.7597077911443E+20
Height
8835496.2780156