20451009 is an odd 8-digits composite number following 20451008
and preceding 20451010 . In scientific notation, it is written as 2.0451009 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13558320 positive integers (up to 20451009) that are relatively prime to 20451009.
20451009 has 8 divisors, whose sum is 27419392
The reverse of 20451009 is 90015402
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred fifty-one thousand nine
Scientific notation
2.0451009 × 10^7
Engineering notation
2.0451009 × 10^6
Prime Factorization
3 × 181 × 37663
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20451009
Product of the distinct prime numbers
The prime factorization of 20451009 is 3 × 181 × 37663.
Since it has a total of 3 prime factors.
9 , 7 , 51 , 4 , 388 , 538 , 4023 , 256 , 69408 , 61565 , 357065 , 440775 , 1464352 , 8574461 , 73423638 , 87338215 , 552219124 , 832140443 , 461114463 , 1648213176
n×2
40902018
n×3
61353027
n×4
81804036
n×5
102255045
n÷2
10225504.5
n÷3
6817003
n÷3
5112752.25
n÷5
4090201.8
n2
418243769118081
n3
8.5535070864278E+21
n4
1.749278504061E+29
n5
3.5774510430058E+36
2 √n
4522.2791820055
3 √n
273.46699177305
4 √n
67.247893513518
5 √n
28.98297404905
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
-20451008
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 20451009 can be divided by 8 positive divisors.
The sum of these divisors (counting 20451009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000000111011000001
3
Ternary
1102111000111210
4
Quaternary
1032000323001
5
Quinary
20213413014
6
Senary
2010200333
8
Octal
116007301
10
Decimal
20451009
12
Duodecimal
6a230a9
16
Hexadecimal
1380ec1
20
Vigesimal
67g7a9
36
Base36
c6c3l
md5
7b9822947a303b92e56ed1cd7c6aed08
sha1
88f0d444afa5208eae3e679f9c4364e0ab3c6874
sha256
1b0f4f0e5694d8a2bd257bba533ccef957aec7c2c8484ac28932fdc644f251a2
sha512
84e4e4dce8942f7ca003f4697889d8a5bad5f784b558c8d58862e3af43ba69f83f8ad89d89b2e9b263512cc7af88fa89cb7a25760e42d589198029ef24526bd7
ripemd-160
4c36a4607b2f3547e46ef1d040e8e28a47570cc8
Diameter
40902018
Circumference
128497479.2658
Area
1.3139515524711E+15
Volume
3.58288467002E+22
Surface area
5.2558062098843E+15
Circumference
128497479.2658
Perimeter
81804036
Area
418243769118081
Diagonal
28922094.292014
Surface area
2509462614708486
Volume
8.5535070864278E+21
Space diagonal
35422186.654048
Perimeter
61353027
Area
1.8110486451541E+14
Altitude
17711093.327024
Surface area
1.8110486451541E+14
Volume
1.00804047729E+21
Height
9640698.0973381