18381009 is an odd 8-digits composite number following 18381008
and preceding 18381010 . In scientific notation, it is written as 1.8381009 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12098736 positive integers (up to 18381009) that are relatively prime to 18381009.
18381009 has 8 divisors, whose sum is 24818560
The reverse of 18381009 is 90018381
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million three hundred eighty-one thousand nine
Scientific notation
1.8381009 × 10^7
Engineering notation
1.8381009 × 10^6
Prime Factorization
3 × 79 × 77557
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18381009
Product of the distinct prime numbers
The prime factorization of 18381009 is 3 × 79 × 77557.
Since it has a total of 3 prime factors.
1 , 10 , 89 , 60 , 746 , 128 , 8066 , 4682 , 45716 , 49973 , 403369 , 570107 , 5091010 , 8063358 , 18558237 , 43086446 , 439814778 , 696347079 , 3506631647 , 8602707771
n×2
36762018
n×3
55143027
n×4
73524036
n×5
91905045
n÷2
9190504.5
n÷3
6127003
n÷3
4595252.25
n÷5
3676201.8
n2
337861491858081
n3
6.2102351225968E+21
n4
1.1415038768057E+29
n5
2.09819930331E+36
2 √n
4287.307896571
3 √n
263.9103661502
4 √n
65.477537343512
5 √n
28.370949423088
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
-18381008
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 18381009 can be divided by 8 positive divisors.
The sum of these divisors (counting 18381009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110000111100011010001
3
Ternary
1021120212000010
4
Quaternary
1012013203101
5
Quinary
14201143014
6
Senary
1453545133
8
Octal
106074321
10
Decimal
18381009
12
Duodecimal
61a51a9
16
Hexadecimal
11878d1
20
Vigesimal
5ehca9
36
Base36
axyvl
md5
970c1d884ca6aa0dc7eed164264006a8
sha1
9e83fcc3c46eaba8b3eb3d2bf9609e97f2de0d49
sha256
50c0f103567395fad6b32244c6de5e8b6cf84f1b605daeafd5c8854bfefbbecb
sha512
7d81cb9aa41205b3c3986106c83a2b383f6abe7e39ac3d14f2ed4847d1cbb259f02e16d327cc5badc7c32b0f85b283b3b838e4cd0bed218d9c119e364c5863a6
ripemd-160
17d652f98fea29493524a25c2f4b4dd4fe5defbb
Diameter
36762018
Circumference
115491285.67994
Area
1.0614231807522E+15
Volume
2.6013372050954E+22
Surface area
4.2456927230089E+15
Circumference
115491285.67994
Perimeter
73524036
Area
337861491858081
Diagonal
25994672.217902
Surface area
2027168951148486
Volume
6.2102351225968E+21
Space diagonal
31836841.482381
Perimeter
55143027
Area
1.462983174548E+14
Altitude
15918420.74119
Surface area
1.462983174548E+14
Volume
7.3188322799185E+20
Height
8664890.7393006