20388515 is an odd 8-digits composite number following 20388514
and preceding 20388516 . In scientific notation, it is written as 2.0388515 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 13905024 positive integers (up to 20388515) that are relatively prime to 20388515.
20388515 has 8 divisors, whose sum is 21084624
The reverse of 20388515 is 51588302
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million three hundred eighty-eight thousand five hundred fifteen
Scientific notation
2.0388515 × 10^7
Engineering notation
2.0388515 × 10^6
Prime Factorization
35 × 197 × 2957
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20388515
Product of the distinct prime numbers
The prime factorization of 20388515 is 35 × 197 × 2957.
Since it has a total of 3 prime factors.
4 , 1 , 3 , 32 , 467 , 428 , 9585 , 1001 , 42238 , 80676 , 842669 , 288034 , 4030565 , 2977477 , 19493707 , 50338360 , 244327925 , 372601579 , 4544276438 , 4282267114
n×2
40777030
n×3
61165545
n×4
81554060
n×5
101942575
n÷2
10194257.5
n÷3
6796171.6666667
n÷3
5097128.75
n÷5
4077703
n2
415691543905225
n3
8.4753332782848E+21
n4
1.7279945967431E+29
n5
3.5231243755616E+36
2 √n
4515.3643263861
3 √n
273.18815494134
4 √n
67.196460668595
5 √n
28.96523917853
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
-20388514
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 20388515 can be divided by 8 positive divisors.
The sum of these divisors (counting 20388515) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110001101010100011
3
Ternary
1102100211210012
4
Quaternary
1031301222203
5
Quinary
20204413030
6
Senary
2004555135
8
Octal
115615243
10
Decimal
20388515
12
Duodecimal
69b2aab
16
Hexadecimal
1371aa3
20
Vigesimal
678b5f
36
Base36
c4zvn
md5
bb67e7ed12161a4fc09e9039872861c8
sha1
c198cdef74a57b1657ca7eb308fb0a0a554d8609
sha256
7604740e59459380178d4488fe1cc1f3aa98793af73ae0ed22596ebecf95503b
sha512
b5f4e0ed8121e1c02470abc3b4f594d905d368715062840c48f81eda2614d5e1b4549c37ded81108c696964cd9f01354b46269852703cf08e482e6e5aabf9fb2
ripemd-160
1994256a1634e935acd1ec05da4c8e07fa752909
Diameter
40777030
Circumference
128104817.88321
Area
1.3059335004921E+15
Volume
3.550139301838E+22
Surface area
5.2237340019682E+15
Circumference
128104817.88321
Perimeter
81554060
Area
415691543905225
Diagonal
28833714.429647
Surface area
2494149263431350
Volume
8.4753332782848E+21
Space diagonal
35313943.87088
Perimeter
61165545
Area
1.7999971858015E+14
Altitude
17656971.93544
Surface area
1.7999971858015E+14
Volume
9.9882760564854E+20
Height
9611238.1432158