20404781 is an odd 8-digits composite number following 20404780
and preceding 20404782 . In scientific notation, it is written as 2.0404781 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20269500 positive integers (up to 20404781) that are relatively prime to 20404781.
20404781 has 4 divisors, whose sum is 20540064
The reverse of 20404781 is 18740402
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million four hundred four thousand seven hundred eighty-one
Scientific notation
2.0404781 × 10^7
Engineering notation
2.0404781 × 10^6
Prime Factorization
151 × 135131
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20404781
Product of the distinct prime numbers
The prime factorization of 20404781 is 151 × 135131.
Since it has a total of 2 prime factors.
4 , 6 , 14 , 48 , 833 , 852 , 5695 , 6621 , 66205 , 15580 , 348731 , 798516 , 974551 , 1886642 , 38130118 , 75750775 , 256780135 , 218610935 , 6445039294 , 8438038357
n×2
40809562
n×3
61214343
n×4
81619124
n×5
102023905
n÷2
10202390.5
n÷3
6801593.6666667
n÷3
5101195.25
n÷5
4080956.2
n2
416355087657961
n3
8.4956343818965E+21
n4
1.7335155901867E+29
n5
3.5372005977845E+36
2 √n
4517.1651508441
3 √n
273.26078565732
4 √n
67.209859030086
5 √n
28.969859410059
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
-20404780
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 20404781 can be divided by 4 positive divisors.
The sum of these divisors (counting 20404781) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101101000101101
3
Ternary
1102101200002122
4
Quaternary
1031311220231
5
Quinary
20210423111
6
Senary
2005202325
8
Octal
115655055
10
Decimal
20404781
12
Duodecimal
6a003a5
16
Hexadecimal
1375a2d
20
Vigesimal
67abj1
36
Base36
c5cfh
md5
95a9ff7ceb69139da18b7e0cffd21431
sha1
2427bbf833bb3c3ea0b1e3ac3a91c322397ffdc4
sha256
b84e88710f232eeb7fde0bfef01ac627b5d933c289fd0ef2e0e6141a6ddc1825
sha512
1357d518ab71f75aa493b6afecb8413919c87f06b3004ba74da3260730fe27a011ebb538f11bf1d8cc01b01503ea61561b437a8c5a6673212d76c6bf50df052e
ripemd-160
635c5b0fad617884c7dc9d0e6fcd0bc2d6ac7a03
Diameter
40809562
Circumference
128207020.17542
Area
1.308018084671E+15
Volume
3.5586430082335E+22
Surface area
5.2320723386839E+15
Circumference
128207020.17542
Perimeter
81619124
Area
416355087657961
Diagonal
28856718.027453
Surface area
2498130525947766
Volume
8.4956343818965E+21
Space diagonal
35342117.409316
Perimeter
61214343
Area
1.8028704145335E+14
Altitude
17671058.704658
Surface area
1.8028704145335E+14
Volume
1.0012201136534E+21
Height
9618906.0091509