18381285 is an odd 8-digits composite number following 18381284
and preceding 18381286 . In scientific notation, it is written as 1.8381285 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 9045504 positive integers (up to 18381285) that are relatively prime to 18381285.
18381285 has 24 divisors, whose sum is 28319616
The reverse of 18381285 is 58218381
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighteen million three hundred eighty-one thousand two hundred eighty-five
Scientific notation
1.8381285 × 10^7
Engineering notation
1.8381285 × 10^6
Prime Factorization
15 × 13 × 3 × 13 × 2417
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1413945
Product of the distinct prime numbers
The prime factorization of 18381285 is 15 × 13 × 3 × 13 × 2417.
Since it has a total of 5 prime factors.
3 , 1 , 5 , 43 , 252 , 196 , 7147 , 9877 , 95841 , 84919 , 945325 , 540978 , 9117688 , 7531890 , 19772734 , 31868365 , 544023342 , 137587321 , 6891297429 , 9586700142
n×2
36762570
n×3
55143855
n×4
73525140
n×5
91906425
n÷2
9190642.5
n÷3
6127095
n÷3
4595321.25
n÷5
3676257
n2
337871638251225
n3
6.2105148761127E+21
n4
1.1415724393457E+29
n5
2.0983568355758E+36
2 √n
4287.3400844813
3 √n
263.91168705876
4 √n
65.477783136582
5 √n
28.371034623362
1 , 3 , 13 , 15 , 39 , 45 , 169 , 195 , 507 , 585 , 2417 , 2535 , 7251 , 7605 , 31421 , 36255 , 94263 , 108765 , 408473 , 471315 , 1225419 , 1413945 , 6127095 , 18381285
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18381284
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18381285 can be divided by 24 positive divisors.
The sum of these divisors (counting 18381285) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1000110000111100111100101
3
Ternary
1021120212101100
4
Quaternary
1012013213211
5
Quinary
14201200120
6
Senary
1453550313
8
Octal
106074745
10
Decimal
18381285
12
Duodecimal
61a5399
16
Hexadecimal
11879e5
20
Vigesimal
5ehd45
36
Base36
axz39
md5
f65eb2b368ff33776b0d548d2f94b4b0
sha1
c901fa7456ef6153f4962a496700e42d1cf0a909
sha256
8d89a8be6bf14591b1ba683ac33f6162755a8bfdff0490c004223a06608113cb
sha512
e3114c6dd7b8ab2376bf3ada871845dd4b0c88f25c13ad836faf0e3b713d0d1ce4acc6229818d7a7a88f6fc3362b33d78df69d2d93dbbce05bd3a27056ffa4b7
ripemd-160
0954d87d04ddbbc3c573fb87b08d9c4365d256e1
Diameter
36762570
Circumference
115493019.83908
Area
1.0614550565864E+15
Volume
2.6014543879741E+22
Surface area
4.2458202263456E+15
Circumference
115493019.83908
Perimeter
73525140
Area
337871638251225
Diagonal
25995062.540845
Surface area
2027229829507350
Volume
6.2105148761127E+21
Space diagonal
31837319.528404
Perimeter
55143855
Area
1.4630271097191E+14
Altitude
15918659.764202
Surface area
1.4630271097191E+14
Volume
7.3191619725987E+20
Height
8665020.8469484