20388439 is an odd 8-digits composite number following 20388438
and preceding 20388440 . In scientific notation, it is written as 2.0388439 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 19891120 positive integers (up to 20388439) that are relatively prime to 20388439.
20388439 has 4 divisors, whose sum is 20885760
The reverse of 20388439 is 93488302
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million three hundred eighty-eight thousand four hundred thirty-nine
Scientific notation
2.0388439 × 10^7
Engineering notation
2.0388439 × 10^6
Prime Factorization
41 × 497279
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20388439
Product of the distinct prime numbers
The prime factorization of 20388439 is 41 × 497279.
Since it has a total of 2 prime factors.
4 , 4 , 16 , 46 , 988 , 932 , 1589 , 6528 , 99286 , 90980 , 939337 , 516758 , 1210584 , 8642704 , 88170402 , 40803908 , 379274104 , 100244534 , 8735213285 , 3173528934
n×2
40776878
n×3
61165317
n×4
81553756
n×5
101942195
n÷2
10194219.5
n÷3
6796146.3333333
n÷3
5097109.75
n÷5
4077687.8
n2
415688444856721
n3
8.4752385009661E+21
n4
1.727968831874E+29
n5
3.5230587122564E+36
2 √n
4515.3559106675
3 √n
273.18781549655
4 √n
67.196398048314
5 √n
28.965217584398
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
-20388438
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 20388439 can be divided by 4 positive divisors.
The sum of these divisors (counting 20388439) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110001101001010111
3
Ternary
1102100211200101
4
Quaternary
1031301221113
5
Quinary
20204412224
6
Senary
2004554531
8
Octal
115615127
10
Decimal
20388439
12
Duodecimal
69b2a47
16
Hexadecimal
1371a57
20
Vigesimal
678b1j
36
Base36
c4ztj
md5
75c5dbb91f6123cae0d45cf28af57101
sha1
7c26b6df54e9e86fdb477bfe25bb1bf947a1dcf3
sha256
29da815cbd6f4ca26dbb399f57dbb4ab7e8a4b661032c60cd76b73e05300f015
sha512
43dbacfb01313d6fa24890381c38a01afc50a47b5f63beb4361708d2ce6bed10c116c89c917f74131aef349dea67d216c78d47518bad1d769701402d2954b100
ripemd-160
d0987517a8494eef3468e9db6dd62bbb7cc54904
Diameter
40776878
Circumference
128104340.36113
Area
1.305923764544E+15
Volume
3.5500996016075E+22
Surface area
5.2236950581762E+15
Circumference
128104340.36113
Perimeter
81553756
Area
415688444856721
Diagonal
28833606.949417
Surface area
2494130669140326
Volume
8.4752385009661E+21
Space diagonal
35313812.235019
Perimeter
61165317
Area
1.7999837665278E+14
Altitude
17656906.117509
Surface area
1.7999837665278E+14
Volume
9.9881643603441E+20
Height
9611202.3164722