20642731 is an odd 8-digits prime number following 20642730
and preceding 20642732 . In scientific notation, it is written as 2.0642731 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20642730 positive integers (up to 20642731) that are relatively prime to 20642731.
20642731 has 2 divisors, whose sum is 20642732
The reverse of 20642731 is 13724602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million six hundred forty-two thousand seven hundred thirty-one
Scientific notation
2.0642731 × 10^7
Engineering notation
2.0642731 × 10^6
Prime Factorization
20642731
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20642731
Product of the distinct prime numbers
The prime factorization of 20642731 is 20642731.
Since it has a total of 1 prime factors.
6 , 3 , 6 , 26 , 598 , 18 , 3786 , 3352 , 21969 , 73523 , 920414 , 210644 , 2453482 , 2262439 , 51505232 , 3014440 , 350398135 , 689511082 , 5051501999 , 6045485509
n×2
41285462
n×3
61928193
n×4
82570924
n×5
103213655
n÷2
10321365.5
n÷3
6880910.3333333
n÷3
5160682.75
n÷5
4128546.2
n2
426122343138361
n3
8.7963289024949E+21
n4
1.8158025132173E+29
n5
3.7483122829468E+36
2 √n
4543.4272306267
3 √n
274.31889186393
4 √n
67.404949600357
5 √n
29.037112730801
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20642732
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10321366
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4543.4273406758
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999031136
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20642731 can be divided by 2 positive divisors.
The sum of these divisors (counting 20642731) is 20642732, the average is 10321366.
Base
System
Value
2
Binary
1001110101111101110101011
3
Ternary
1102211202111121
4
Quaternary
1032233232223
5
Quinary
20241031411
6
Senary
2014240111
8
Octal
116575653
10
Decimal
20642731
12
Duodecimal
6ab6037
16
Hexadecimal
13afbab
20
Vigesimal
6906gb
36
Base36
cag17
md5
3d2e4e1fd0ca2e0e6322b7fa60280511
sha1
b1ffcc0ff3fea93ac063792580fd1102a1f6de80
sha256
25dd9d3d6ac48b895a81bbd12ebd8df6b14c9a5fa65f64d37ef948d5daffbb16
sha512
4a867f54d7be9143f3fc86da02b64ee6ac0ea1aaf11c991b8c7988682000636a7e3f18074f679f10d3cb135c3f5d813d968e450be75a72de360186ad437af455
ripemd-160
3a389dd5f3383318335f00efe617741c3e7b402c
Diameter
41285462
Circumference
129702104.11926
Area
1.3387028227339E+15
Volume
3.684597634485E+22
Surface area
5.3548112909358E+15
Circumference
129702104.11926
Perimeter
82570924
Area
426122343138361
Diagonal
29193230.14462
Surface area
2556734058830166
Volume
8.7963289024949E+21
Space diagonal
35754258.898977
Perimeter
61928193
Area
1.8451638713899E+14
Altitude
17877129.449489
Surface area
1.8451638713899E+14
Volume
1.0366573027502E+21
Height
9731076.7148732