18084987 is an odd 8-digits composite number following 18084986
and preceding 18084988 . In scientific notation, it is written as 1.8084987 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 11978928 positive integers (up to 18084987) that are relatively prime to 18084987.
18084987 has 8 divisors, whose sum is 20224000
The reverse of 18084987 is 78948081
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighteen million eighty-four thousand nine hundred eighty-seven
Scientific notation
1.8084987 × 10^7
Engineering notation
1.8084987 × 10^6
Prime Factorization
9 × 157 × 12799
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18084987
Product of the distinct prime numbers
The prime factorization of 18084987 is 9 × 157 × 12799.
Since it has a total of 3 prime factors.
3 , 9 , 56 , 64 , 237 , 759 , 4034 , 8755 , 23114 , 36669 , 216489 , 982819 , 3558676 , 5320657 , 77005628 , 8371588 , 556853024 , 769257353 , 3774012625 , 3124195645
n×2
36169974
n×3
54254961
n×4
72339948
n×5
90424935
n÷2
9042493.5
n÷3
6028329
n÷3
4521246.75
n÷5
3616997.4
n2
327066754790169
n3
5.9149980085124E+21
n4
1.0697266208897E+29
n5
1.9345992032345E+36
2 √n
4252.6447065326
3 √n
262.48595298982
4 √n
65.212304870574
5 √n
28.27897345123
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
-18084986
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 18084987 can be divided by 8 positive divisors.
The sum of these divisors (counting 18084987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000100111111010001111011
3
Ternary
1021000210221100
4
Quaternary
1010333101323
5
Quinary
14112204422
6
Senary
1443342443
8
Octal
104772173
10
Decimal
18084987
12
Duodecimal
6081a23
16
Hexadecimal
113f47b
20
Vigesimal
5d0c97
36
Base36
armgr
md5
8db0310c0079f1b2545f62e065a50bbd
sha1
a7e7f553c29bfcd9d08f72b4e40d6e247f337e34
sha256
4bb5eeb42ffa6097942f1dd9dd84fc2888c47e967472a59a68a366086f618dc1
sha512
2bdaf2d5545d4964628ecd149ed02c68a5614a82d87e21c588eeb526ec2db6fc82eb93a8844ac5cb6d612afa208d3509a00c634d0c21b4edfbd09f93bf2d8a29
ripemd-160
856c7ea93630302db1615d0f5624de694823926e
Diameter
36169974
Circumference
113631324.59893
Area
1.0275105140822E+15
Volume
2.4776685719388E+22
Surface area
4.110042056329E+15
Circumference
113631324.59893
Perimeter
72339948
Area
327066754790169
Diagonal
25576033.890741
Surface area
1962400528741014
Volume
5.9149980085124E+21
Space diagonal
31324116.338223
Perimeter
54254961
Area
1.4162405919081E+14
Altitude
15662058.169111
Surface area
1.4162405919081E+14
Volume
6.9708920042067E+20
Height
8525344.630247