20647521 is an odd 8-digits composite number following 20647520
and preceding 20647522 . In scientific notation, it is written as 2.0647521 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13764996 positive integers (up to 20647521) that are relatively prime to 20647521.
20647521 has 4 divisors, whose sum is 21412272
The reverse of 20647521 is 12574602
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million six hundred forty-seven thousand five hundred twenty-one
Scientific notation
2.0647521 × 10^7
Engineering notation
2.0647521 × 10^6
Prime Factorization
27 × 764723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20647521
Product of the distinct prime numbers
The prime factorization of 20647521 is 27 × 764723.
Since it has a total of 2 prime factors.
1 , 3 , 99 , 37 , 780 , 885 , 9899 , 7827 , 45027 , 33415 , 402446 , 334388 , 9218021 , 5126695 , 651124 , 8861055 , 289420518 , 218115932 , 3849979273 , 6681228609
n×2
41295042
n×3
61942563
n×4
82590084
n×5
103237605
n÷2
10323760.5
n÷3
6882507
n÷3
5161880.25
n÷5
4129504.2
n2
426320123445441
n3
8.8024537015623E+21
n4
1.8174884765454E+29
n5
3.7526631486728E+36
2 √n
4543.9543351579
3 √n
274.34010814375
4 √n
67.408859470828
5 √n
29.038460177145
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
-20647520
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 20647521 can be divided by 4 positive divisors.
The sum of these divisors (counting 20647521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110110000111001100001
3
Ternary
1102212000002000
4
Quaternary
1032300321201
5
Quinary
20241210041
6
Senary
2014314213
8
Octal
116607141
10
Decimal
20647521
12
Duodecimal
6ab8969
16
Hexadecimal
13b0e61
20
Vigesimal
690ig1
36
Base36
cajq9
md5
f9b6b1fdee1f290ffb114d0c45b4ce32
sha1
e0717e2b8489371d0210b939f14de10a2591adee
sha256
257f52b7b3b8f67c3c16c34abe74c42172406f8900fcd19e73bcf5a0ae490526
sha512
72e048bf9c8e5f014ccdc5ec22a5ae9761ba14400fccdf7f11cdd92b82ac11a0ccca21b39806f4175e6c5fa1e28fe18dbbd9b0a24a2599fb1e851e6225fc68f1
ripemd-160
75ffe02d7e93f27f297bcf20ad128e65ac5fd5ac
Diameter
41295042
Circumference
129732200.57688
Area
1.3393241678937E+15
Volume
3.687163184319E+22
Surface area
5.3572966715748E+15
Circumference
129732200.57688
Perimeter
82590084
Area
426320123445441
Diagonal
29200004.227583
Surface area
2557920740672646
Volume
8.8024537015623E+21
Space diagonal
35762555.422345
Perimeter
61942563
Area
1.8460202852413E+14
Altitude
17881277.711173
Surface area
1.8460202852413E+14
Volume
1.0373791172426E+21
Height
9733334.7425278