20804581 is an odd 8-digits composite number following 20804580
and preceding 20804582 . In scientific notation, it is written as 2.0804581 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 17057040 positive integers (up to 20804581) that are relatively prime to 20804581.
20804581 has 4 divisors, whose sum is 20933964
The reverse of 20804581 is 18540802
Previous prime number is 161
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred four thousand five hundred eighty-one
Scientific notation
2.0804581 × 10^7
Engineering notation
2.0804581 × 10^6
Prime Factorization
161 × 129221
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804581
Product of the distinct prime numbers
The prime factorization of 20804581 is 161 × 129221.
Since it has a total of 2 prime factors.
8 , 8 , 83 , 40 , 651 , 193 , 7086 , 6371 , 79505 , 53515 , 983013 , 652461 , 3121745 , 7258194 , 17876595 , 25580903 , 404876589 , 908912359 , 5180639786 , 3465784070
n×2
41609162
n×3
62413743
n×4
83218324
n×5
104022905
n÷2
10402290.5
n÷3
6934860.3333333
n÷3
5201145.25
n÷5
4160916.2
n2
432830590585561
n3
9.0048590811151E+21
n4
1.8734232014665E+29
n5
3.8975784742188E+36
2 √n
4561.2038980953
3 √n
275.03396164589
4 √n
67.536685572327
5 √n
29.082503881135
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20804580
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20804581 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804581) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111001111100101
3
Ternary
1110010222112001
4
Quaternary
1033113033211
5
Quinary
20311221311
6
Senary
2021525301
8
Octal
117271745
10
Decimal
20804581
12
Duodecimal
6b73831
16
Hexadecimal
13d73e5
20
Vigesimal
6a0b91
36
Base36
cdwx1
md5
48a0281433f527b0d35c987edfd2e971
sha1
aa9ddeae5c2d7870b1591fcd0a1e71a8b9ebf072
sha256
b3fd112159e680395bf2aa8c80e8f4fd060bcfb62eaa7b1f4e0a0a7f374299a4
sha512
d555baa81a0e1b53da54ec5b6106f214c14ac5ee0a32e2e7bba3a7eeba7a4c1082501cce57795e5fd5e5329e8393a154356a128fe8b2c8b8ab4ab01415ddc3db
ripemd-160
28b3161c6a4abeb22749bd344eb23a4129d55050
Diameter
41609162
Circumference
130719037.66123
Area
1.3597774036325E+15
Volume
3.7719465514457E+22
Surface area
5.4391096145301E+15
Circumference
130719037.66123
Perimeter
83218324
Area
432830590585561
Diagonal
29422120.60969
Surface area
2596983543513366
Volume
9.0048590811151E+21
Space diagonal
36034591.322182
Perimeter
62413743
Area
1.8742114349106E+14
Altitude
18017295.661091
Surface area
1.8742114349106E+14
Volume
1.061232819981E+21
Height
9807373.5365632