20512491 is an odd 8-digits composite number following 20512490
and preceding 20512492 . In scientific notation, it is written as 2.0512491 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13660392 positive integers (up to 20512491) that are relatively prime to 20512491.
20512491 has 8 divisors, whose sum is 27379200
The reverse of 20512491 is 19421502
Previous prime number is 1103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million five hundred twelve thousand four hundred ninety-one
Scientific notation
2.0512491 × 10^7
Engineering notation
2.0512491 × 10^6
Prime Factorization
3 × 1103 × 6199
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512491
Product of the distinct prime numbers
The prime factorization of 20512491 is 3 × 1103 × 6199.
Since it has a total of 3 prime factors.
8 , 3 , 95 , 27 , 276 , 538 , 9424 , 1950 , 24821 , 66347 , 309810 , 356611 , 6267199 , 6825022 , 38280294 , 37487755 , 249133912 , 793438464 , 3456515732 , 46643691
n×2
41024982
n×3
61537473
n×4
82049964
n×5
102562455
n÷2
10256245.5
n÷3
6837497
n÷3
5128122.75
n÷5
4102498.2
n2
420762287025081
n3
8.6308826257414E+21
n4
1.7704090218258E+29
n5
3.631549912652E+36
2 √n
4529.0717592019
3 √n
273.74075947208
4 √n
67.298378577807
5 √n
29.000379471491
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
-20512490
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 20512491 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512491) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111111011101011
3
Ternary
1102121010211220
4
Quaternary
1032033323223
5
Quinary
20222344431
6
Senary
2011353123
8
Octal
116177353
10
Decimal
20512491
12
Duodecimal
6a527a3
16
Hexadecimal
138feeb
20
Vigesimal
68414b
36
Base36
c7njf
md5
c2f7d90530e0a95a3f5916c1eb8d1af4
sha1
340de05e1a5840c2b1f808214037259aec4bd870
sha256
5506962287b4bdece7df06450428febb97af98c0ca90e760e44b15646e0dda11
sha512
473a46e844540ea9872886bf6ce49abe91bf13e3b95b8dfc98f17a5bb1ad5f9e3015ad16d191986a20fe5faefa280222c8f02db0e0643eb0bf380d583248f980
ripemd-160
b00977beb67394294fe96163e93b58e7242a9c02
Diameter
41024982
Circumference
128883782.06485
Area
1.3218637098256E+15
Volume
3.6152956601367E+22
Surface area
5.2874548393025E+15
Circumference
128883782.06485
Perimeter
82049964
Area
420762287025081
Diagonal
29009042.970256
Surface area
2524573722150486
Volume
8.6308826257414E+21
Space diagonal
35528676.601799
Perimeter
61537473
Area
1.8219541475908E+14
Altitude
17764338.3009
Surface area
1.8219541475908E+14
Volume
1.0171592720478E+21
Height
9669680.9900854