18994805 is an odd 8-digits composite number following 18994804
and preceding 18994806 . In scientific notation, it is written as 1.8994805 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 15195840 positive integers (up to 18994805) that are relatively prime to 18994805.
18994805 has 4 divisors, whose sum is 22793772
The reverse of 18994805 is 50849981
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighteen million nine hundred ninety-four thousand eight hundred five
Scientific notation
1.8994805 × 10^7
Engineering notation
1.8994805 × 10^6
Prime Factorization
5 × 3798961
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18994805
Product of the distinct prime numbers
The prime factorization of 18994805 is 5 × 3798961.
Since it has a total of 2 prime factors.
10 , 1 , 80 , 72 , 619 , 508 , 595 , 4842 , 99567 , 72720 , 20740 , 284872 , 3279490 , 8241007 , 54302691 , 30304243 , 832894618 , 643173047 , 2091576525 , 5060779781
n×2
37989610
n×3
56984415
n×4
75979220
n×5
94974025
n÷2
9497402.5
n÷3
6331601.6666667
n÷3
4748701.25
n÷5
3798961
n2
360802616988025
n3
6.8533753531772E+21
n4
1.3017852842541E+29
n5
2.4727157626276E+36
2 √n
4358.302995433
3 √n
266.81584274908
4 √n
66.017444629681
5 √n
28.557945989169
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
-18994804
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 18994805 can be divided by 4 positive divisors.
The sum of these divisors (counting 18994805) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011101011001110101
3
Ternary
1022202000222022
4
Quaternary
1020131121311
5
Quinary
14330313210
6
Senary
1515042525
8
Octal
110353165
10
Decimal
18994805
12
Duodecimal
6440445
16
Hexadecimal
121d675
20
Vigesimal
5ie705
36
Base36
bb4hh
md5
c1734e123dc1e88e4136e68edec0556d
sha1
2fb006642f47389cde41bc93a2c1102a48e29d32
sha256
8d3e553742eb0b0c593d942d20ab5a3fa3de044b3499174610d5210a7b680e5d
sha512
fb1adc502be82342a11c89010534afc4b44a0fe9b22e943b60d601f33b508bc54231d577a33b8b8a014142ef452ca5512c3cf7ffc102c560d9483f08a7c7e076
ripemd-160
94c5bcf3cbbe2bc45e6e0f4cc851441416ff7acf
Diameter
37989610
Circumference
119347879.68874
Area
1.1334948509256E+15
Volume
2.8707351549113E+22
Surface area
4.5339794037022E+15
Circumference
119347879.68874
Perimeter
75979220
Area
360802616988025
Diagonal
26862710.845632
Surface area
2164815701928150
Volume
6.8533753531772E+21
Space diagonal
32899967.339863
Perimeter
56984415
Area
1.5623211603177E+14
Altitude
16449983.669932
Surface area
1.5623211603177E+14
Volume
8.0767803104139E+20
Height
8954236.9485441