20138387 is an odd 8-digits composite number following 20138386
and preceding 20138388 . In scientific notation, it is written as 2.0138387 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 18949152 positive integers (up to 20138387) that are relatively prime to 20138387.
20138387 has 8 divisors, whose sum is 21402000
The reverse of 20138387 is 78383102
Previous prime number is 289
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred thirty-eight thousand three hundred eighty-seven
Scientific notation
2.0138387 × 10^7
Engineering notation
2.0138387 × 10^6
Prime Factorization
17 × 289 × 4099
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138387
Product of the distinct prime numbers
The prime factorization of 20138387 is 17 × 289 × 4099.
Since it has a total of 3 prime factors.
6 , 3 , 51 , 17 , 130 , 465 , 1718 , 3523 , 5898 , 99364 , 704193 , 283240 , 4015175 , 108167 , 97100733 , 58287215 , 598143153 , 843408593 , 9415182145 , 4238620328
n×2
40276774
n×3
60415161
n×4
80553548
n×5
100691935
n÷2
10069193.5
n÷3
6712795.6666667
n÷3
5034596.75
n÷5
4027677.4
n2
405554630961769
n3
8.1672161079503E+21
n4
1.6447455869454E+29
n5
3.3122523146448E+36
2 √n
4487.5814198742
3 √n
272.06639004413
4 √n
66.989412744658
5 √n
28.893818240767
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
-20138386
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 20138387 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138387) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100100110010011
3
Ternary
1101220010200012
4
Quaternary
1030310212103
5
Quinary
20123412022
6
Senary
1555345135
8
Octal
114644623
10
Decimal
20138387
12
Duodecimal
68b21ab
16
Hexadecimal
1334993
20
Vigesimal
65h5j7
36
Base36
bzmvn
md5
33582d87eb1dc6cfe22a690854d51e26
sha1
531ae6a4f9adb30d87b63b8126af55da175f9694
sha256
af083000f67ba9eda55e4a84a5daa5168e51affc538fab11fb8387401af251c0
sha512
b0c2c3a37cc5891bef4f52982c2dc315affdde225fdb77a87acfa50577dd8c7facb4bff00ddbd5ff64e178964c1ba633651b5141655e1eb3e964dfe380e15966
ripemd-160
4f96f4172f25b45728ac5da56027b2872f386a30
Diameter
40276774
Circumference
126533217.3087
Area
1.2740874492588E+15
Volume
3.4210754833356E+22
Surface area
5.0963497970353E+15
Circumference
126533217.3087
Perimeter
80553548
Area
405554630961769
Diagonal
28479980.019718
Surface area
2433327785770614
Volume
8.1672161079503E+21
Space diagonal
34880709.466485
Perimeter
60415161
Area
1.7561030651766E+14
Altitude
17440354.733242
Surface area
1.7561030651766E+14
Volume
9.6251564889128E+20
Height
9493326.6732393