18984986 is an even 8-digits composite number following 18984985
and preceding 18984987 . In scientific notation, it is written as 1.8984986 × 10^7.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 9350748 positive integers (up to 18984986) that are relatively prime to 18984986.
18984986 has 8 divisors, whose sum is 28902720
The reverse of 18984986 is 68948981
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 53
Digital Root 8
Name
eighteen million nine hundred eighty-four thousand nine hundred eighty-six
Scientific notation
1.8984986 × 10^7
Engineering notation
1.8984986 × 10^6
Prime Factorization
2 × 67 × 141679
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18984986
Product of the distinct prime numbers
The prime factorization of 18984986 is 2 × 67 × 141679.
Since it has a total of 3 prime factors.
3 , 8 , 62 , 7 , 681 , 148 , 730 , 1533 , 89538 , 49983 , 960248 , 854305 , 3066972 , 316505 , 40783056 , 65198780 , 706282448 , 605453634 , 8786332603 , 3471564332
n×2
37969972
n×3
56954958
n×4
75939944
n×5
94924930
n÷2
9492493
n÷3
6328328.6666667
n÷3
4746246.5
n÷5
3796997.2
n2
360429693420196
n3
6.8427526835667E+21
n4
1.2990956389898E+29
n5
2.4663312518882E+36
2 √n
4357.1763792621
3 √n
266.76985971461
4 √n
66.008911362498
5 √n
28.554992882035
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
-18984985
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 18984986 can be divided by 8 positive divisors.
The sum of these divisors (counting 18984986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011011000000011010
3
Ternary
1022201112111122
4
Quaternary
1020123000122
5
Quinary
14330004421
6
Senary
1514525242
8
Octal
110330032
10
Decimal
18984986
12
Duodecimal
6436822
16
Hexadecimal
121b01a
20
Vigesimal
5id296
36
Base36
bawwq
md5
f88c3dad03f0a8d33e7fe96cdab39065
sha1
42cb63a553f1bafc44340307b7dc4e2cd1a7b612
sha256
4c4d48159246c889fb288793b9791f786a3e4d4b0f9b956eb32904ddd8451b40
sha512
9af70bf75215886af397996bbf39b05c52ae20910743ddc57efa8bc0df4b70dd7ecdab5e7468e47be786154e543f7a4135b91fa748375a2750fb5dfcc4931882
ripemd-160
bf038801fe4b680d390d692a7dabdbed30a910b5
Diameter
37969972
Circumference
119286185.09221
Area
1.1323232769845E+15
Volume
2.86628554147E+22
Surface area
4.529293107938E+15
Circumference
119286185.09221
Perimeter
75939944
Area
360429693420196
Diagonal
26848824.682663
Surface area
2162578160521176
Volume
6.8427526835667E+21
Space diagonal
32882960.332984
Perimeter
56954958
Area
1.5607063539006E+14
Altitude
16441480.166492
Surface area
1.5607063539006E+14
Volume
8.0642613742208E+20
Height
8949608.2275544