20385639 is an odd 8-digits composite number following 20385638
and preceding 20385640 . In scientific notation, it is written as 2.0385639 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 13300992 positive integers (up to 20385639) that are relatively prime to 20385639.
20385639 has 12 divisors, whose sum is 30073056
The reverse of 20385639 is 93658302
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million three hundred eighty-five thousand six hundred thirty-nine
Scientific notation
2.0385639 × 10^7
Engineering notation
2.0385639 × 10^6
Prime Factorization
3 × 3 × 47 × 48193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6795213
Product of the distinct prime numbers
The prime factorization of 20385639 is 3 × 3 × 47 × 48193.
Since it has a total of 4 prime factors.
2 , 9 , 25 , 45 , 474 , 318 , 2194 , 8027 , 81595 , 48587 , 44382 , 581200 , 328612 , 9361375 , 53816470 , 20885536 , 493973364 , 623399363 , 6889898411 , 4130577744
n×2
40771278
n×3
61156917
n×4
81542556
n×5
101928195
n÷2
10192819.5
n÷3
6795213
n÷3
5096409.75
n÷5
4077127.8
n2
415574277438321
n3
8.4717471975435E+21
n4
1.7270198006838E+29
n5
3.5206402202592E+36
2 √n
4515.0458469433
3 √n
273.1753090478
4 √n
67.194090863284
5 √n
28.964421966207
1 , 3 , 9 , 47 , 141 , 423 , 48193 , 144579 , 433737 , 2265071 , 6795213 , 20385639
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20385638
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20385639 can be divided by 12 positive divisors.
The sum of these divisors (counting 20385639) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110000111101100111
3
Ternary
1102100200211200
4
Quaternary
1031300331213
5
Quinary
20204320024
6
Senary
2004533543
8
Octal
115607547
10
Decimal
20385639
12
Duodecimal
69b12b3
16
Hexadecimal
1370f67
20
Vigesimal
67841j
36
Base36
c4xnr
md5
7621219eb7130f2be3be23b0db28da0c
sha1
8ea9c60d6f529821947a0a4f9421311700771f94
sha256
04715ff578d52a1555fc87e1ec79db54aa73abe636083bb139795910c814523d
sha512
fe1d982aa0df68eb2477ff07808e355221f61afecf1cec75612682787c78cc54160c9ae47398e1c280f6bd96af75109fedf614b922df52b7124c0393b91ff416
ripemd-160
0dd3f527e14a5df18c8258f19730b6a5fde45642
Diameter
40771278
Circumference
128086747.44227
Area
1.3055650970211E+15
Volume
3.5486371678497E+22
Surface area
5.2222603880845E+15
Circumference
128086747.44227
Perimeter
81542556
Area
415574277438321
Diagonal
28829647.151442
Surface area
2493445664629926
Volume
8.4717471975435E+21
Space diagonal
35308962.492758
Perimeter
61156917
Area
1.7994894071047E+14
Altitude
17654481.246379
Surface area
1.7994894071047E+14
Volume
9.9840498198018E+20
Height
9609882.383814