18990803 is an odd 8-digits composite number following 18990802
and preceding 18990804 . In scientific notation, it is written as 1.8990803 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 17400384 positive integers (up to 18990803) that are relatively prime to 18990803.
18990803 has 8 divisors, whose sum is 20602848
The reverse of 18990803 is 30809981
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million nine hundred ninety thousand eight hundred three
Scientific notation
1.8990803 × 10^7
Engineering notation
1.8990803 × 10^6
Prime Factorization
13 × 137 × 10663
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18990803
Product of the distinct prime numbers
The prime factorization of 18990803 is 13 × 137 × 10663.
Since it has a total of 3 prime factors.
5 , 4 , 25 , 18 , 110 , 498 , 9668 , 4190 , 67954 , 28606 , 513835 , 552407 , 4047117 , 1005187 , 12695355 , 32864135 , 219310036 , 719691084 , 247721343 , 8555565468
n×2
37981606
n×3
56972409
n×4
75963212
n×5
94954015
n÷2
9495401.5
n÷3
6330267.6666667
n÷3
4747700.75
n÷5
3798160.6
n2
360650598584809
n3
6.8490444695562E+21
n4
1.3006885425958E+29
n5
2.4701119876794E+36
2 √n
4357.8438475925
3 √n
266.79710302871
4 √n
66.013967064497
5 √n
28.556742517664
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
-18990802
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 18990803 can be divided by 8 positive divisors.
The sum of these divisors (counting 18990803) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100011011010011
3
Ternary
1022201211111002
4
Quaternary
1020130123103
5
Quinary
14330201203
6
Senary
1515012215
8
Octal
110343323
10
Decimal
18990803
12
Duodecimal
643a06b
16
Hexadecimal
121c6d3
20
Vigesimal
5idh03
36
Base36
bb1eb
md5
94a4d48817412914ca24a3d7c8e46c04
sha1
c963174460434cd6dddb498b27c44818be46b145
sha256
7575b45b1a01411979143184b12b03fa4e4b617b1c49336edbad34e5e1be474d
sha512
48e9af3a8476f3995969d78e1a61c442235e7ae66101b28ddb879f92dcfa5fcfdcb267dfefe2e2bfee3280374879ed36fdd7c4c980a74ad8c3d5e7b40a37c888
ripemd-160
7ba911195958de7dcd2929c1fd8b7bf6473e4cc0
Diameter
37981606
Circumference
119322734.38114
Area
1.1330172710268E+15
Volume
2.8689210386223E+22
Surface area
4.5320690841072E+15
Circumference
119322734.38114
Perimeter
75963212
Area
360650598584809
Diagonal
26857051.162956
Surface area
2163903591508854
Volume
6.8490444695562E+21
Space diagonal
32893035.672531
Perimeter
56972409
Area
1.5616629013225E+14
Altitude
16446517.836266
Surface area
1.5616629013225E+14
Volume
8.071676315119E+20
Height
8952350.3876519