20731438 is an even 8-digits composite number following 20731437
and preceding 20731439 . In scientific notation, it is written as 2.0731438 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 8201376 positive integers (up to 20731438) that are relatively prime to 20731438.
20731438 has 8 divisors, whose sum is 31439160
The reverse of 20731438 is 83413702
Previous prime number is 91
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred thirty-one thousand four hundred thirty-eight
Scientific notation
2.0731438 × 10^7
Engineering notation
2.0731438 × 10^6
Prime Factorization
2 × 91 × 113909
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20731438
Product of the distinct prime numbers
The prime factorization of 20731438 is 2 × 91 × 113909.
Since it has a total of 3 prime factors.
9 , 7 , 10 , 75 , 276 , 549 , 7739 , 6774 , 38735 , 11802 , 708474 , 50719 , 6965938 , 3371854 , 91049866 , 5592379 , 119593024 , 929153703 , 1738188170 , 9300739528
n×2
41462876
n×3
62194314
n×4
82925752
n×5
103657190
n÷2
10365719
n÷3
6910479.3333333
n÷3
5182859.5
n÷5
4146287.6
n2
429792521547844
n3
8.9102170133328E+21
n4
1.8472161157845E+29
n5
3.8295446376988E+36
2 √n
4553.1788895232
3 √n
274.71126941115
4 √n
67.477247198765
5 √n
29.06202589762
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20731437
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20731438 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731438) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101011000101110
3
Ternary
1110000021012001
4
Quaternary
1033011120232
5
Quinary
20301401223
6
Senary
2020202514
8
Octal
117053056
10
Decimal
20731438
12
Duodecimal
6b3943a
16
Hexadecimal
13c562e
20
Vigesimal
69b8bi
36
Base36
cccha
md5
caa92d477be4961aaea15fff64fdb65c
sha1
f2e989011a9442bf2c9e20a8f1bf99002f1eb981
sha256
e651101d8a39ea203d2a8eac4863a2b10df72971bf932f1d49859b45cdfd221d
sha512
2077bbf390a4f1175b653597beb2d6565aebce54720307a793e1fded807dd6a70b8c6c3abceca58275f47601349ff505a2976e95ca30f8794e96fb78aef7d35e
ripemd-160
0fab397f823867eb99110d9cdd01c3a89045cce0
Diameter
41462876
Circumference
130259466.6383
Area
1.3502330282625E+15
Volume
3.7323029747969E+22
Surface area
5.4009321130502E+15
Circumference
130259466.6383
Perimeter
82925752
Area
429792521547844
Diagonal
29318680.787097
Surface area
2578755129287064
Volume
8.9102170133328E+21
Space diagonal
35907903.929964
Perimeter
62194314
Area
1.861056210085E+14
Altitude
17953951.964982
Surface area
1.861056210085E+14
Volume
1.0500791453286E+21
Height
9772893.595699