18984989 is an odd 8-digits composite number following 18984988
and preceding 18984990 . In scientific notation, it is written as 1.8984989 × 10^7.
The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors.
There are 18324000 positive integers (up to 18984989) that are relatively prime to 18984989.
18984989 has 8 divisors, whose sum is 19649280
The reverse of 18984989 is 98948981
Previous prime number is 601
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 56
Digital Root 2
Name
eighteen million nine hundred eighty-four thousand nine hundred eighty-nine
Scientific notation
1.8984989 × 10^7
Engineering notation
1.8984989 × 10^6
Prime Factorization
31 × 601 × 1019
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18984989
Product of the distinct prime numbers
The prime factorization of 18984989 is 31 × 601 × 1019.
Since it has a total of 3 prime factors.
10 , 7 , 52 , 93 , 914 , 455 , 9711 , 9508 , 28794 , 70419 , 275291 , 102540 , 2871508 , 5681324 , 99255548 , 89972416 , 890081424 , 754448556 , 1117619563 , 4143455749
n×2
37969978
n×3
56954967
n×4
75939956
n×5
94924945
n÷2
9492494.5
n÷3
6328329.6666667
n÷3
4746247.25
n÷5
3796997.8
n2
360429807330121
n3
6.8427559274345E+21
n4
1.2990964601203E+29
n5
2.4663332005322E+36
2 √n
4357.1767235218
3 √n
266.76987376623
4 √n
66.008913970174
5 √n
28.554993784485
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
-18984988
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 18984989 can be divided by 8 positive divisors.
The sum of these divisors (counting 18984989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011011000000011101
3
Ternary
1022201112111202
4
Quaternary
1020123000131
5
Quinary
14330004424
6
Senary
1514525245
8
Octal
110330035
10
Decimal
18984989
12
Duodecimal
6436825
16
Hexadecimal
121b01d
20
Vigesimal
5id299
36
Base36
bawwt
md5
fdf057c3bbe70ec125761d62f6cd7383
sha1
5df03f3c4724aafab5ef2ef07757edbefe4bcf1d
sha256
5ddedde9760cc6a36074890dbb42c1cb168873430f3ed94d84aaacb328943c42
sha512
79489eba3ffb73873778e6fe751bc3a99f7845014ecd81d996b8c7ca0055210de78af3fd5ba8e2601a5adf317a818e52fcbb629247faef05e29792dd6e6c677b
ripemd-160
831f631a1e616511606f5ef7ac8432a27d7f0391
Diameter
37969978
Circumference
119286203.94177
Area
1.1323236348431E+15
Volume
2.8662869002582E+22
Surface area
4.5292945393724E+15
Circumference
119286203.94177
Perimeter
75939956
Area
360429807330121
Diagonal
26848828.925304
Surface area
2162578843980726
Volume
6.8427559274345E+21
Space diagonal
32882965.529136
Perimeter
56954967
Area
1.5607068471451E+14
Altitude
16441482.764568
Surface area
1.5607068471451E+14
Volume
8.0642651971556E+20
Height
8949609.641768