20408821 is an odd 8-digits prime number following 20408820
and preceding 20408822 . In scientific notation, it is written as 2.0408821 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20408820 positive integers (up to 20408821) that are relatively prime to 20408821.
20408821 has 2 divisors, whose sum is 20408822
The reverse of 20408821 is 12880402
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred eight thousand eight hundred twenty-one
Scientific notation
2.0408821 × 10^7
Engineering notation
2.0408821 × 10^6
Prime Factorization
20408821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20408821
Product of the distinct prime numbers
The prime factorization of 20408821 is 20408821.
Since it has a total of 1 prime factors.
6 , 5 , 85 , 39 , 635 , 361 , 5054 , 3368 , 65969 , 48772 , 851493 , 610996 , 2083741 , 6138311 , 90496586 , 17978371 , 909135613 , 690200173 , 204490134 , 5503194291
n×2
40817642
n×3
61226463
n×4
81635284
n×5
102044105
n÷2
10204410.5
n÷3
6802940.3333333
n÷3
5102205.25
n÷5
4081764.2
n2
416519974610041
n3
8.5006816047409E+21
n4
1.7348888924915E+29
n5
3.5407036861747E+36
2 √n
4517.6123118302
3 √n
273.27881902447
4 √n
67.213185550383
5 √n
28.971006484012
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20408822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10204411
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4517.6124225082
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999020032
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20408821 can be divided by 2 positive divisors.
The sum of these divisors (counting 20408821) is 20408822, the average is 10204411.
Base
System
Value
2
Binary
1001101110110100111110101
3
Ternary
1102101212122021
4
Quaternary
1031312213311
5
Quinary
20211040241
6
Senary
2005233141
8
Octal
115664765
10
Decimal
20408821
12
Duodecimal
6a027b1
16
Hexadecimal
13769f5
20
Vigesimal
67b211
36
Base36
c5fjp
md5
fb8028f71e33f35dec38d738f095195b
sha1
50e11e56b96ae04633c0d2f2caf03029ced65582
sha256
cc4ce19395857e14fdd675e3c70cf37119b184d9b9b942c91c52f24e32f2ee20
sha512
6bfb71b1305cf23846703188e4ff575fb8b54d6cc5cfbf1605c7c879586aba8947302415e711b34135463006febc74c4541cb50a071b6f45ae75dee9f92a172b
ripemd-160
120ebfa76fcde9b841f6d40b17dcf9f94cc8c716
Diameter
40817642
Circumference
128232404.24406
Area
1.3085360923083E+15
Volume
3.5607571839946E+22
Surface area
5.2341443692332E+15
Circumference
128232404.24406
Perimeter
81635284
Area
416519974610041
Diagonal
28862431.450245
Surface area
2499119847660246
Volume
8.5006816047409E+21
Space diagonal
35349114.894579
Perimeter
61226463
Area
1.8035843959797E+14
Altitude
17674557.447289
Surface area
1.8035843959797E+14
Volume
1.00181493457E+21
Height
9620810.4834149