20731807 is an odd 8-digits composite number following 20731806
and preceding 20731808 . In scientific notation, it is written as 2.0731807 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20604456 positive integers (up to 20731807) that are relatively prime to 20731807.
20731807 has 4 divisors, whose sum is 20859160
The reverse of 20731807 is 70813702
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred thirty-one thousand eight hundred seven
Scientific notation
2.0731807 × 10^7
Engineering notation
2.0731807 × 10^6
Prime Factorization
163 × 127189
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20731807
Product of the distinct prime numbers
The prime factorization of 20731807 is 163 × 127189.
Since it has a total of 2 prime factors.
6 , 6 , 6 , 33 , 992 , 843 , 8261 , 6057 , 63753 , 25318 , 338219 , 596606 , 936185 , 8366157 , 95625273 , 88092751 , 28169190 , 548588366 , 1434170805 , 1256247262
n×2
41463614
n×3
62195421
n×4
82927228
n×5
103659035
n÷2
10365903.5
n÷3
6910602.3333333
n÷3
5182951.75
n÷5
4146361.4
n2
429807821485249
n3
8.9106928021226E+21
n4
1.847347634099E+29
n5
3.8298854612046E+36
2 √n
4553.2194104831
3 √n
274.71289926845
4 √n
67.477547454565
5 √n
29.062129352202
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
-20731806
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 20731807 can be divided by 4 positive divisors.
The sum of these divisors (counting 20731807) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000101011110011111
3
Ternary
1110000021200201
4
Quaternary
1033011132133
5
Quinary
20301404212
6
Senary
2020204331
8
Octal
117053637
10
Decimal
20731807
12
Duodecimal
6b396a7
16
Hexadecimal
13c579f
20
Vigesimal
69b9a7
36
Base36
cccrj
md5
310980ff2affa77987d6043a9e066988
sha1
33b049c9af67f7edc13398b045e2775fa731e69b
sha256
5e27beabcbc83d9c490ade2734fbad66d0336f9a58653e7d5dcc34c7f370ecf2
sha512
96093bb4f865b8573f56d12599a9e92788299cc7c421c89fbc94ff12850a5b3fc0b0b0cc6d28c4a1a07553e391ecc141c5c6b48104682dac0e9dabe58fa763ad
ripemd-160
477e3fd4004048a53862e72b170179478c55fb5b
Diameter
41463614
Circumference
130261785.13368
Area
1.3502810944335E+15
Volume
3.7325022727392E+22
Surface area
5.401124377734E+15
Circumference
130261785.13368
Perimeter
82927228
Area
429807821485249
Diagonal
29319202.631901
Surface area
2578846928911494
Volume
8.9106928021226E+21
Space diagonal
35908543.056712
Perimeter
62195421
Area
1.8611224607574E+14
Altitude
17954271.528356
Surface area
1.8611224607574E+14
Volume
1.0501352175752E+21
Height
9773067.5439672