20487913 is an odd 8-digits composite number following 20487912
and preceding 20487914 . In scientific notation, it is written as 2.0487913 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20473488 positive integers (up to 20487913) that are relatively prime to 20487913.
20487913 has 4 divisors, whose sum is 20502340
The reverse of 20487913 is 31978402
Previous prime number is 1597
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million four hundred eighty-seven thousand nine hundred thirteen
Scientific notation
2.0487913 × 10^7
Engineering notation
2.0487913 × 10^6
Prime Factorization
1597 × 12829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20487913
Product of the distinct prime numbers
The prime factorization of 20487913 is 1597 × 12829.
Since it has a total of 2 prime factors.
4 , 10 , 87 , 73 , 654 , 89 , 686 , 2849 , 72504 , 71078 , 692117 , 582582 , 9990896 , 8295294 , 69041540 , 81162848 , 49814911 , 100756390 , 6618117183 , 2955280260
n×2
40975826
n×3
61463739
n×4
81951652
n×5
102439565
n÷2
10243956.5
n÷3
6829304.3333333
n÷3
5121978.25
n÷5
4097582.6
n2
419754579095569
n3
8.5998952978616E+21
n4
1.761939066717E+29
n5
3.6098454310199E+36
2 √n
4526.3575864043
3 √n
273.63138401344
4 √n
67.278210338893
5 √n
28.993426506212
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
-20487912
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 20487913 can be divided by 4 positive divisors.
The sum of these divisors (counting 20487913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001001111011101001
3
Ternary
1102112220010121
4
Quaternary
1032021323221
5
Quinary
20221103123
6
Senary
2011043241
8
Octal
116117351
10
Decimal
20487913
12
Duodecimal
6a40521
16
Hexadecimal
1389ee9
20
Vigesimal
680jfd
36
Base36
c74kp
md5
e6fca0466a0347bdf354fafe32f162f5
sha1
c0d5b6aea20d19b0806cc78608243a7c558e237b
sha256
c99d37c39ecc568c5d3c90910823b0d725f9027220798388695cdc67d55aadda
sha512
e6bafca6adaa8a07779a61d647d95001c7b01cf02b164d9a09e4c2b2228e6e15b84b4f27d9e65988bbdd1c4517e75f8d2010512d9581d5a7668431f420d79a22
ripemd-160
24254a95033ef1df16ed859052dfcfafa3568647
Diameter
40975826
Circumference
128729353.93637
Area
1.3186979019973E+15
Volume
3.6023157185871E+22
Surface area
5.2747916079893E+15
Circumference
128729353.93637
Perimeter
81951652
Area
419754579095569
Diagonal
28974284.42932
Surface area
2518527474573414
Volume
8.5998952978616E+21
Space diagonal
35486106.257051
Perimeter
61463739
Area
1.817590644258E+14
Altitude
17743053.128525
Surface area
1.817590644258E+14
Volume
1.0135073804354E+21
Height
9658094.8097734