20208731 is an odd 8-digits composite number following 20208730
and preceding 20208732 . In scientific notation, it is written as 2.0208731 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19778712 positive integers (up to 20208731) that are relatively prime to 20208731.
20208731 has 4 divisors, whose sum is 20638752
The reverse of 20208731 is 13780202
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million two hundred eight thousand seven hundred thirty-one
Scientific notation
2.0208731 × 10^7
Engineering notation
2.0208731 × 10^6
Prime Factorization
47 × 429973
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20208731
Product of the distinct prime numbers
The prime factorization of 20208731 is 47 × 429973.
Since it has a total of 2 prime factors.
3 , 1 , 75 , 53 , 206 , 969 , 713 , 9906 , 99964 , 22870 , 298073 , 485745 , 8107654 , 8794045 , 66266259 , 59788752 , 796315975 , 21601015 , 5790271400 , 9397069965
n×2
40417462
n×3
60626193
n×4
80834924
n×5
101043655
n÷2
10104365.5
n÷3
6736243.6666667
n÷3
5052182.75
n÷5
4041746.2
n2
408392808630361
n3
8.2531004119454E+21
n4
1.6678468614099E+29
n5
3.3705068571428E+36
2 √n
4495.4122169163
3 √n
272.38280065173
4 √n
67.047835288816
5 √n
28.91397549412
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
-20208730
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 20208731 can be divided by 4 positive divisors.
The sum of these divisors (counting 20208731) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000101110001011011
3
Ternary
1102000201011112
4
Quaternary
1031011301123
5
Quinary
20133134411
6
Senary
2001050535
8
Octal
115056133
10
Decimal
20208731
12
Duodecimal
6926a4b
16
Hexadecimal
1345c5b
20
Vigesimal
6661gb
36
Base36
c155n
md5
4e260f7d12969d21dcbfae49d1cf0236
sha1
a33f20fa081b58bdae28a078cfacfacaa34166bd
sha256
6c320e0c5652a16529a18fe6adf33e0abee0ffc0748c4d0b332a8475ba8c37bf
sha512
8ff9fac933caa8ca2b51866fd1615ac988251f8877171354c2bf0d2ecd791ef29718ced7f8a15330f3bf9ea11d25bde54e3c7274788b66be3d3a9bfebe1b7384
ripemd-160
6e4a57770d37e3de400e4dd5af5042a63c3c224e
Diameter
40417462
Circumference
126975201.69594
Area
1.283003847372E+15
Volume
3.4570506164676E+22
Surface area
5.1320153894882E+15
Circumference
126975201.69594
Perimeter
80834924
Area
408392808630361
Diagonal
28579461.45855
Surface area
2450356851782166
Volume
8.2531004119454E+21
Space diagonal
35002548.848492
Perimeter
60626193
Area
1.7683927349838E+14
Altitude
17501274.424246
Surface area
1.7683927349838E+14
Volume
9.7263721118335E+20
Height
9526487.1528499