20408931 is an odd 8-digits composite number following 20408930
and preceding 20408932 . In scientific notation, it is written as 2.0408931 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13573680 positive integers (up to 20408931) that are relatively prime to 20408931.
20408931 has 8 divisors, whose sum is 22730400
The reverse of 20408931 is 13980402
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred eight thousand nine hundred thirty-one
Scientific notation
2.0408931 × 10^7
Engineering notation
2.0408931 × 10^6
Prime Factorization
9 × 461 × 4919
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20408931
Product of the distinct prime numbers
The prime factorization of 20408931 is 9 × 461 × 4919.
Since it has a total of 3 prime factors.
1 , 10 , 9 , 57 , 157 , 705 , 2937 , 206 , 45559 , 82127 , 157451 , 54446 , 8793804 , 7936963 , 75467965 , 53689572 , 533702050 , 165861753 , 6654815619 , 1504262820
n×2
40817862
n×3
61226793
n×4
81635724
n×5
102044655
n÷2
10204465.5
n÷3
6802977
n÷3
5102232.75
n÷5
4081786.2
n2
416524464562761
n3
8.5008190570733E+21
n4
1.7349262957929E+29
n5
3.5407991060924E+36
2 √n
4517.6244863866
3 √n
273.27930999871
4 √n
67.213276117049
5 √n
28.971037713683
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
-20408930
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 20408931 can be divided by 8 positive divisors.
The sum of these divisors (counting 20408931) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110101001100011
3
Ternary
1102101212210100
4
Quaternary
1031312221203
5
Quinary
20211041211
6
Senary
2005233443
8
Octal
115665143
10
Decimal
20408931
12
Duodecimal
6a02883
16
Hexadecimal
1376a63
20
Vigesimal
67b26b
36
Base36
c5fmr
md5
3a0bedaff748030bb9d49092d4e876e6
sha1
0446000398b9529d20eec3267db4341058ad6187
sha256
0e04392875c40b097444d06cb8ddbb3880ee0f197dc4c385bf1b627e34d2fe57
sha512
28baf92058141d7d1c21e3a3b5f579e22ef398da2e69ef7cf0c9def6c132676d6c01f696370fb1d4b90e2fc4367aa149a04bca55922b24646abbaa981ead0e24
ripemd-160
a385c89d853dbb691c7118371b71d08104ae93b1
Diameter
40817862
Circumference
128233095.39444
Area
1.3085501979108E+15
Volume
3.560814759893E+22
Surface area
5.2342007916432E+15
Circumference
128233095.39444
Perimeter
81635724
Area
416524464562761
Diagonal
28862587.013737
Surface area
2499146787376566
Volume
8.5008190570733E+21
Space diagonal
35349305.420167
Perimeter
61226793
Area
1.8036038380453E+14
Altitude
17674652.710084
Surface area
1.8036038380453E+14
Volume
1.0018311334827E+21
Height
9620862.3379122