18804989 is an odd 8-digits composite number following 18804988
and preceding 18804990 . In scientific notation, it is written as 1.8804989 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 15724800 positive integers (up to 18804989) that are relatively prime to 18804989.
18804989 has 16 divisors, whose sum is 22023936
The reverse of 18804989 is 98940881
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million eight hundred four thousand nine hundred eighty-nine
Scientific notation
1.8804989 × 10^7
Engineering notation
1.8804989 × 10^6
Prime Factorization
7 × 241 × 157 × 71
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18804989
Product of the distinct prime numbers
The prime factorization of 18804989 is 7 × 241 × 157 × 71.
Since it has a total of 4 prime factors.
5 , 9 , 59 , 13 , 131 , 561 , 6765 , 4263 , 69618 , 98881 , 312875 , 131581 , 4888759 , 3566390 , 79019471 , 23686543 , 937999393 , 942034182 , 9976981665 , 59477179
n×2
37609978
n×3
56414967
n×4
75219956
n×5
94024945
n÷2
9402494.5
n÷3
6268329.6666667
n÷3
4701247.25
n÷5
3760997.8
n2
353627611290121
n3
6.649963340407E+21
n4
1.2505248746676E+29
n5
2.351610651235E+36
2 √n
4336.4719530974
3 √n
265.92409785295
4 √n
65.851894073727
5 √n
28.500640279999
1 , 7 , 71 , 157 , 241 , 497 , 1099 , 1687 , 11147 , 17111 , 37837 , 78029 , 119777 , 264859 , 2686427 , 18804989
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18804988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18804989 can be divided by 16 positive divisors.
The sum of these divisors (counting 18804989) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000111101111000011111101
3
Ternary
1022101101121002
4
Quaternary
1013233003331
5
Quinary
14303224424
6
Senary
1511020045
8
Octal
107570375
10
Decimal
18804989
12
Duodecimal
636a625
16
Hexadecimal
11ef0fd
20
Vigesimal
5hac99
36
Base36
b720t
md5
50e0875030c0c3a58f49e4454ca9edce
sha1
6322185a7bf5a4053779d1e537c820ed40125562
sha256
96f1f0cde6bbec949f1ec86632935fd3774be5ae359eecef1959419641435c36
sha512
614e1466a91ba68bd80ae6663b4f97b5ae4dda0eda1ef86cf9e5d40b8b207faac33825a6bf008bda08ed45cfedc5fa369f1056d8af0fa3ed6af8c35cd1e3c89c
ripemd-160
88cd579f11f0888759e0b825bce9ac807055abd7
Diameter
37609978
Circumference
118155230.58647
Area
1.1109539057356E+15
Volume
2.7855301302485E+22
Surface area
4.4438156229422E+15
Circumference
118155230.58647
Perimeter
75219956
Area
353627611290121
Diagonal
26594270.484077
Surface area
2121765667740726
Volume
6.649963340407E+21
Space diagonal
32571196.383774
Perimeter
56414967
Area
1.5312524742843E+14
Altitude
16285598.191887
Surface area
1.5312524742843E+14
Volume
7.8370569544062E+20
Height
8864756.8280256