20642938 is an even 8-digits composite number following 20642937
and preceding 20642939 . In scientific notation, it is written as 2.0642938 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 10314720 positive integers (up to 20642938) that are relatively prime to 20642938.
20642938 has 8 divisors, whose sum is 30984660
The reverse of 20642938 is 83924602
Previous prime number is 2341
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred forty-two thousand nine hundred thirty-eight
Scientific notation
2.0642938 × 10^7
Engineering notation
2.0642938 × 10^6
Prime Factorization
2 × 2341 × 4409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20642938
Product of the distinct prime numbers
The prime factorization of 20642938 is 2 × 2341 × 4409.
Since it has a total of 3 prime factors.
3 , 6 , 73 , 57 , 665 , 848 , 465 , 9607 , 76956 , 58652 , 928197 , 213651 , 9073387 , 3710751 , 43591676 , 54371456 , 922165208 , 979607464 , 2178430551 , 8451021362
n×2
41285876
n×3
61928814
n×4
82571752
n×5
103214690
n÷2
10321469
n÷3
6880979.3333333
n÷3
5160734.5
n÷5
4128587.6
n2
426130889271844
n3
8.7965935271235E+21
n4
1.8158753479161E+29
n5
3.7485002222761E+36
2 √n
4543.4500107297
3 √n
274.31980879398
4 √n
67.405118579598
5 √n
29.037170965908
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
-20642937
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 20642938 can be divided by 8 positive divisors.
The sum of these divisors (counting 20642938) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101111110001111010
3
Ternary
1102211202210021
4
Quaternary
1032233301322
5
Quinary
20241033223
6
Senary
2014241054
8
Octal
116576172
10
Decimal
20642938
12
Duodecimal
6ab618a
16
Hexadecimal
13afc7a
20
Vigesimal
69076i
36
Base36
cag6y
md5
b019696858021d3bc56f3983bba166d7
sha1
0ee07f7fc6844647e07d0b1c26196509b365aac4
sha256
73c56ad7b4d8ce9d70c45d312982815cf374a9b3ae9a894f47dd02ccceb26aef
sha512
f7ad1ca4a0f6a45c1de214679ce9acedfecafffa27e9874c2793511e18f9e3c8247fff6e91ded014c7dc225a89fb60b136f9645ecafda0ca38f2095c9ce98687
ripemd-160
6a1df9054d2a699d4519786184ca22952b787e4b
Diameter
41285876
Circumference
129703404.73862
Area
1.3387296712041E+15
Volume
3.6847084801902E+22
Surface area
5.3549186848164E+15
Circumference
129703404.73862
Perimeter
82571752
Area
426130889271844
Diagonal
29193522.886827
Surface area
2556785335631064
Volume
8.7965935271235E+21
Space diagonal
35754617.433494
Perimeter
61928814
Area
1.8452008772334E+14
Altitude
17877308.716747
Surface area
1.8452008772334E+14
Volume
1.0366884890618E+21
Height
9731174.295609