20642509 is an odd 8-digits prime number following 20642508
and preceding 20642510 . In scientific notation, it is written as 2.0642509 × 10^7.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 20642508 positive integers (up to 20642509) that are relatively prime to 20642509.
20642509 has 2 divisors, whose sum is 20642510
The reverse of 20642509 is 90524602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred forty-two thousand five hundred nine
Scientific notation
2.0642509 × 10^7
Engineering notation
2.0642509 × 10^6
Prime Factorization
20642509
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20642509
Product of the distinct prime numbers
The prime factorization of 20642509 is 20642509.
Since it has a total of 1 prime factors.
2 , 5 , 4 , 87 , 950 , 637 , 5697 , 2540 , 68163 , 81786 , 415444 , 992645 , 4615911 , 4656275 , 78851438 , 96518486 , 458808715 , 666021122 , 4324472018 , 5152211595
n×2
41285018
n×3
61927527
n×4
82570036
n×5
103212545
n÷2
10321254.5
n÷3
6880836.3333333
n÷3
5160627.25
n÷5
4128501.8
n2
426113177815081
n3
8.7960451080664E+21
n4
1.8157244030767E+29
n5
3.748110733203E+36
2 √n
4543.4027996646
3 √n
274.31790848287
4 √n
67.404768374831
5 √n
29.03705027524
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20642510
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10321255
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4543.4029097143
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999031126
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20642509 can be divided by 2 positive divisors.
The sum of these divisors (counting 20642509) is 20642510, the average is 10321255.
Base
System
Value
2
Binary
1001110101111101011001101
3
Ternary
1102211202012101
4
Quaternary
1032233223031
5
Quinary
20241030014
6
Senary
2014235101
8
Octal
116575315
10
Decimal
20642509
12
Duodecimal
6ab5a91
16
Hexadecimal
13afacd
20
Vigesimal
690659
36
Base36
cafv1
md5
421cdf09d977494189db2bc3f677a7f0
sha1
4742870ce80d7fa874200c8410cbddffe619f7cb
sha256
05e66681f7acc0981d83aba381a57ac9736725d6f264709fed946a80021b4978
sha512
ef4e2cb80b3ed2c86f9575662749f8005e3b980b98746df244dfe25e10b5f822031fdec9b838812abc1e96f671c816c0b8313c83b31e37bd2ae879f3d5afba28
ripemd-160
79b2eaebad6f8068c90ec38763883b6fbe6c9f0b
Diameter
41285018
Circumference
129700709.25212
Area
1.3386740290217E+15
Volume
3.6844787589528E+22
Surface area
5.3546961160866E+15
Circumference
129700709.25212
Perimeter
82570036
Area
426113177815081
Diagonal
29192916.189209
Surface area
2556679066890486
Volume
8.7960451080664E+21
Space diagonal
35753874.383698
Perimeter
61927527
Area
1.8451241843759E+14
Altitude
17876937.191849
Surface area
1.8451241843759E+14
Volume
1.0366238572561E+21
Height
9730972.0630696