20572721 is an odd 8-digits composite number following 20572720
and preceding 20572722 . In scientific notation, it is written as 2.0572721 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 18990192 positive integers (up to 20572721) that are relatively prime to 20572721.
20572721 has 4 divisors, whose sum is 22155252
The reverse of 20572721 is 12727502
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million five hundred seventy-two thousand seven hundred twenty-one
Scientific notation
2.0572721 × 10^7
Engineering notation
2.0572721 × 10^6
Prime Factorization
13 × 1582517
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20572721
Product of the distinct prime numbers
The prime factorization of 20572721 is 13 × 1582517.
Since it has a total of 2 prime factors.
5 , 9 , 84 , 36 , 427 , 540 , 4363 , 252 , 65844 , 67578 , 896145 , 845297 , 4138384 , 6640925 , 31284714 , 46179203 , 424249598 , 910414000 , 2204704477 , 8619567947
n×2
41145442
n×3
61718163
n×4
82290884
n×5
102863605
n÷2
10286360.5
n÷3
6857573.6666667
n÷3
5143180.25
n÷5
4114544.2
n2
423236849343841
n3
8.7071336184699E+21
n4
1.791294306425E+29
n5
3.685179799497E+36
2 √n
4535.7161507308
3 √n
274.00842231734
4 √n
67.347725653735
5 √n
29.017390033152
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
-20572720
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 20572721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20572721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011110101000110001
3
Ternary
1102201012110122
4
Quaternary
1032132220301
5
Quinary
20231311341
6
Senary
2012540025
8
Octal
116365061
10
Decimal
20572721
12
Duodecimal
6a81615
16
Hexadecimal
139ea31
20
Vigesimal
68bbg1
36
Base36
c8y0h
md5
b3558be5952df35e41872a7cad0013c2
sha1
2119d57e6c422ce8469d17bef8aa115a00befe86
sha256
2fc1a5b43a5ee1785b3ef1b905c52f7a6a1f89a97c0f6363387717fd7a192389
sha512
ae4d62ecc23ff949be6fa10f015aa899c4d6274c1a06e010496728f0910fb169f5e5df56fb04fbff4bb2d5f7481835d9b57254f63c2f9798d8ee6f9a9ee63227
ripemd-160
cb7831b2b25abcdc1bac3168708f68a40c3273af
Diameter
41145442
Circumference
129262218.3159
Area
1.3296377766271E+15
Volume
3.6472356012813E+22
Surface area
5.3185511065084E+15
Circumference
129262218.3159
Perimeter
82290884
Area
423236849343841
Diagonal
29094221.053118
Surface area
2539421096063046
Volume
8.7071336184699E+21
Space diagonal
35632998.021939
Perimeter
61718163
Area
1.8326693167473E+14
Altitude
17816499.01097
Surface area
1.8326693167473E+14
Volume
1.0261455377196E+21
Height
9698073.6843726