18054987 is an odd 8-digits composite number following 18054986
and preceding 18054988 . In scientific notation, it is written as 1.8054987 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 12036656 positive integers (up to 18054987) that are relatively prime to 18054987.
18054987 has 4 divisors, whose sum is 24073320
The reverse of 18054987 is 78945081
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million fifty-four thousand nine hundred eighty-seven
Scientific notation
1.8054987 × 10^7
Engineering notation
1.8054987 × 10^6
Prime Factorization
3 × 6018329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18054987
Product of the distinct prime numbers
The prime factorization of 18054987 is 3 × 6018329.
Since it has a total of 2 prime factors.
6 , 6 , 72 , 40 , 122 , 187 , 9777 , 1620 , 67943 , 39468 , 247094 , 250088 , 930703 , 3785026 , 31892436 , 222741 , 940665954 , 184874622 , 7391733296 , 4111014861
n×2
36109974
n×3
54164961
n×4
72219948
n×5
90274935
n÷2
9027493.5
n÷3
6018329
n÷3
4513746.75
n÷5
3610997.4
n2
325982555570169
n3
5.8856108030462E+21
n4
1.0626462653606E+29
n5
1.9186064506684E+36
2 √n
4249.1160257164
3 √n
262.34073241148
4 √n
65.185243926186
5 √n
28.269585192492
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
-18054986
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 18054987 can be divided by 4 positive divisors.
The sum of these divisors (counting 18054987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000100110111111101001011
3
Ternary
1020222021210020
4
Quaternary
1010313331023
5
Quinary
14110224422
6
Senary
1442551523
8
Octal
104677513
10
Decimal
18054987
12
Duodecimal
60685a3
16
Hexadecimal
1137f4b
20
Vigesimal
5cgh97
36
Base36
aqzbf
md5
85c30715f7e6c2c201da11f119f81241
sha1
f1c03696eced77c4eade452e098ea626ecad13a1
sha256
9e87f72aa5cbaccc2014190aeeb6cc81e4b96b5806137a427f38479dae77eaae
sha512
98a327dba0eb6c142f6d4c94d3cdcb0646584a4068a64151ca3190ce44c4058273fa4e877d5b9926782502b3e4dd4ec636dfc1224e10ad7e58bca4e4c870c846
ripemd-160
63fdf4afe7162b9d906e48f3ff2863fa49ae2436
Diameter
36109974
Circumference
113442829.03972
Area
1.0241044017777E+15
Volume
2.4653588880985E+22
Surface area
4.0964176071107E+15
Circumference
113442829.03972
Perimeter
72219948
Area
325982555570169
Diagonal
25533607.48387
Surface area
1955895333421014
Volume
5.8856108030462E+21
Space diagonal
31272154.813996
Perimeter
54164961
Area
1.4115458715717E+14
Altitude
15636077.406998
Surface area
1.4115458715717E+14
Volume
6.9362588504313E+20
Height
8511202.4946233