2018394491 is an odd 10-digits composite number following 2018394490
and preceding 2018394492 . In scientific notation, it is written as 2.018394491 × 10^9.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 1912163184 positive integers (up to 2018394491) that are relatively prime to 2018394491.
2018394491 has 4 divisors, whose sum is 2124625800
The reverse of 2018394491 is 1944938102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 41
Digital Root 5
Name
two billion eighteen million three hundred ninety-four thousand four hundred ninety-one
Scientific notation
2.018394491 × 10^9
Engineering notation
2.018394491 × 10^9
Prime Factorization
19 × 106231289
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2018394491
Product of the distinct prime numbers
The prime factorization of 2018394491 is 19 × 106231289.
Since it has a total of 2 prime factors.
9 , 6 , 1 , 66 , 592 , 644 , 1700 , 4305 , 47311 , 6838 , 698497 , 134774 , 8748733 , 3015815 , 67258350 , 56557647 , 688975187 , 543439926 , 5473160365 , 7650244951
n×2
4036788982
n×3
6055183473
n×4
8073577964
n×5
10091972455
n÷2
1009197245.5
n÷3
672798163.66667
n÷3
504598622.75
n÷5
403678898.2
n2
4073916321299149081
n3
8.2227702597052E+27
n4
1.6596794192948E+37
n5
3.3498877967306E+46
2 √n
44926.545504857
3 √n
1263.7718693382
4 √n
211.95882974025
5 √n
72.61079811807
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
-2018394490
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 2018394491 can be divided by 4 positive divisors.
The sum of these divisors (counting 2018394491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111000010011100100000101111011
3
Ternary
12012122222001201112
4
Quaternary
1320103210011323
5
Quinary
13113202110431
6
Senary
532141110535
8
Octal
17023440573
10
Decimal
2018394491
12
Duodecimal
483b5844b
16
Hexadecimal
784e417b
20
Vigesimal
1baej64b
36
Base36
xdp75n
md5
e42b53f869fa1f6209e1afd7d08a297d
sha1
a95c897bd86f142f3d94e13dc7fd2083ca8e6efc
sha256
3628ef634bf207e9f0140eff6d277cdbd4ab89b0eac4d61dd85ba4d01713a36c
sha512
73b8f73be1725ae6b5c784cd12224dd420b9850e0242ac9ca3ef370adf979bdbba7552e0dcf6dc58ca2b1f6bd7a78827db1aa59bdf4a1e2601766387423de1d0
ripemd-160
f54c544b37f656f7843f208fa0d653b1f98815cb
Diameter
4036788982
Circumference
12681946609.943
Area
1.2798585586333E+19
Volume
3.4443459520062E+28
Surface area
5.1194342345332E+19
Circumference
12681946609.943
Perimeter
8073577964
Area
4073916321299149081
Diagonal
2854440863.3913
Surface area
2.4443497927795E+19
Volume
8.2227702597052E+27
Space diagonal
3495961808.1291
Perimeter
6055183473
Area
1.7640575135686E+18
Altitude
1747980904.0646
Surface area
1.7640575135686E+18
Volume
9.6906276846277E+26
Height
951480287.79711