18685409 is an odd 8-digits composite number following 18685408
and preceding 18685410 . In scientific notation, it is written as 1.8685409 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 18676416 positive integers (up to 18685409) that are relatively prime to 18685409.
18685409 has 4 divisors, whose sum is 18694404
The reverse of 18685409 is 90458681
Previous prime number is 5737
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighteen million six hundred eighty-five thousand four hundred nine
Scientific notation
1.8685409 × 10^7
Engineering notation
1.8685409 × 10^6
Prime Factorization
5737 × 3257
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18685409
Product of the distinct prime numbers
The prime factorization of 18685409 is 5737 × 3257.
Since it has a total of 2 prime factors.
8 , 1 , 8 , 71 , 495 , 31 , 2039 , 9069 , 71075 , 6669 , 455367 , 577694 , 1274927 , 2681736 , 14060330 , 22986126 , 800677292 , 196347596 , 7231473688 , 7799985503
n×2
37370818
n×3
56056227
n×4
74741636
n×5
93427045
n÷2
9342704.5
n÷3
6228469.6666667
n÷3
4671352.25
n÷5
3737081.8
n2
349144509497281
n3
6.5239079600611E+21
n4
1.219018885121E+29
n5
2.2777866447209E+36
2 √n
4322.6622583774
3 √n
265.35923275351
4 √n
65.746956267019
5 √n
28.464300896019
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
-18685408
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 18685409 can be divided by 4 positive divisors.
The sum of these divisors (counting 18685409) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111010001110111100001
3
Ternary
1022011022120012
4
Quaternary
1013101313201
5
Quinary
14240413114
6
Senary
1504254305
8
Octal
107216741
10
Decimal
18685409
12
Duodecimal
6311395
16
Hexadecimal
11d1de1
20
Vigesimal
5gfda9
36
Base36
b4hr5
md5
c6ff90c6c09376a66369c2c910ce5e0d
sha1
cb4a0b39a50e9832fc6870c1e66fd48803aaf705
sha256
e5a1279904c5dac162d4d9abd9d9d2a5b1ed40a05ed9e6fa888de35a58379dcc
sha512
4093516d8515c55afba71dc25da54fcd4de1680b45403f11f5eeab825e2d9537d7c65638aa7762eb8a51ea5f4d78f851febadb389a5657fec9978b21acb5096e
ripemd-160
90b7c1c604ace9fadebdb81981e315219b29bc65
Diameter
37370818
Circumference
117403887.28744
Area
1.0968698260779E+15
Volume
2.7327281760032E+22
Surface area
4.3874793043115E+15
Circumference
117403887.28744
Perimeter
74741636
Area
349144509497281
Diagonal
26425158.826288
Surface area
2094867056983686
Volume
6.5239079600611E+21
Space diagonal
32364077.748205
Perimeter
56056227
Area
1.5118400740825E+14
Altitude
16182038.874102
Surface area
1.5118400740825E+14
Volume
7.6884992639935E+20
Height
8808386.2754294