20681509 is an odd 8-digits prime number following 20681508
and preceding 20681510 . In scientific notation, it is written as 2.0681509 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 20681508 positive integers (up to 20681509) that are relatively prime to 20681509.
20681509 has 2 divisors, whose sum is 20681510
The reverse of 20681509 is 90518602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred eighty-one thousand five hundred nine
Scientific notation
2.0681509 × 10^7
Engineering notation
2.0681509 × 10^6
Prime Factorization
20681509
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20681509
Product of the distinct prime numbers
The prime factorization of 20681509 is 20681509.
Since it has a total of 1 prime factors.
8 , 8 , 8 , 46 , 745 , 922 , 6613 , 1636 , 89860 , 93953 , 524305 , 326453 , 9243292 , 8285981 , 60360223 , 64111795 , 158491194 , 959831788 , 3008016547 , 8082372599
n×2
41363018
n×3
62044527
n×4
82726036
n×5
103407545
n÷2
10340754.5
n÷3
6893836.3333333
n÷3
5170377.25
n÷5
4136301.8
n2
427724814517081
n3
8.8459946009583E+21
n4
1.8294851695367E+29
n5
3.783651399914E+36
2 √n
4547.6927116946
3 √n
274.49055655229
4 √n
67.436582888626
5 √n
29.048013962996
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20681510
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10340755
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4547.6928216404
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999032953
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681509 can be divided by 2 positive divisors.
The sum of these divisors (counting 20681509) is 20681510, the average is 10340755.
Base
System
Value
2
Binary
1001110111001001100100101
3
Ternary
1102220201200211
4
Quaternary
1032321030211
5
Quinary
20243302014
6
Senary
2015135421
8
Octal
116711445
10
Decimal
20681509
12
Duodecimal
6b14571
16
Hexadecimal
13b9325
20
Vigesimal
6953f9
36
Base36
cb9yd
md5
917879b3c1656d1ed7410632b6a7bda9
sha1
ff6f37f92bfb158c9bcb7a640ae8e33537421f81
sha256
4e451671df88bed69ed713a07eb69d3b3af7681c043c75c32377cec5e011be9b
sha512
deef0a5d182c174a16b4df8c67f061c63d7b14ca9b04b37d7ae259fefa271092cc6c4c133b971e49f1b2a8796d1ba50b8422bb46294f86f465dea67e3c8c4956
ripemd-160
0cce390d4218d90c6c6a2b5694cf6681189f0b25
Diameter
41363018
Circumference
129945753.4791
Area
1.3437371350449E+15
Volume
3.7054015536088E+22
Surface area
5.3749485401797E+15
Circumference
129945753.4791
Perimeter
82726036
Area
427724814517081
Diagonal
29248070.518141
Surface area
2566348887102486
Volume
8.8459946009583E+21
Space diagonal
35821424.365193
Perimeter
62044527
Area
1.8521027760039E+14
Altitude
17910712.182597
Surface area
1.8521027760039E+14
Volume
1.0425104614462E+21
Height
9749356.8393804