20647531 is an odd 8-digits composite number following 20647530
and preceding 20647532 . In scientific notation, it is written as 2.0647531 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20443000 positive integers (up to 20647531) that are relatively prime to 20647531.
20647531 has 4 divisors, whose sum is 20852064
The reverse of 20647531 is 13574602
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred forty-seven thousand five hundred thirty-one
Scientific notation
2.0647531 × 10^7
Engineering notation
2.0647531 × 10^6
Prime Factorization
101 × 204431
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20647531
Product of the distinct prime numbers
The prime factorization of 20647531 is 101 × 204431.
Since it has a total of 2 prime factors.
4 , 3 , 34 , 8 , 679 , 298 , 1344 , 7784 , 51367 , 70642 , 796968 , 136948 , 7755028 , 8460740 , 68720873 , 63513747 , 893099629 , 518172625 , 623975735 , 7139761590
n×2
41295062
n×3
61942593
n×4
82590124
n×5
103237655
n÷2
10323765.5
n÷3
6882510.3333333
n÷3
5161882.75
n÷5
4129506.2
n2
426320536395961
n3
8.8024664911722E+21
n4
1.8174919975294E+29
n5
3.752672236124E+36
2 √n
4543.9554355209
3 √n
274.34015243318
4 √n
67.408867632685
5 √n
29.038462989923
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
-20647530
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 20647531 can be divided by 4 positive divisors.
The sum of these divisors (counting 20647531) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110110000111001101011
3
Ternary
1102212000002101
4
Quaternary
1032300321223
5
Quinary
20241210111
6
Senary
2014314231
8
Octal
116607153
10
Decimal
20647531
12
Duodecimal
6ab8977
16
Hexadecimal
13b0e6b
20
Vigesimal
690igb
36
Base36
cajqj
md5
de9fac7ebd4791a314786f483e9482d7
sha1
d781061d61f148f1a2a86ae71ecd31d05e629d70
sha256
8f4dd4784d803942c83d050f25bc3977a42c27c05421ce2bee0b6068d9fd2f6a
sha512
50f504f964c8e5b56dcef13e864b0cd8e710d55164048e5a0bc0b1ce06d2670dfcc3c1c617d5e09f5176d0e6e2f65680ac900dfad2dc95a31843973a58d7a3e6
ripemd-160
02cc60de77be4efbe1a4fd3675a71a03bca19f6d
Diameter
41295062
Circumference
129732263.40874
Area
1.339325465216E+15
Volume
3.6871685416183E+22
Surface area
5.357301860864E+15
Circumference
129732263.40874
Perimeter
82590124
Area
426320536395961
Diagonal
29200018.369719
Surface area
2557923218375766
Volume
8.8024664911722E+21
Space diagonal
35762572.742853
Perimeter
61942593
Area
1.8460220733696E+14
Altitude
17881286.371427
Surface area
1.8460220733696E+14
Volume
1.0373806245125E+21
Height
9733339.456573