20804815 is an odd 8-digits composite number following 20804814
and preceding 20804816 . In scientific notation, it is written as 2.0804815 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16621440 positive integers (up to 20804815) that are relatively prime to 20804815.
20804815 has 8 divisors, whose sum is 24999408
The reverse of 20804815 is 51840802
Previous prime number is 881
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred four thousand eight hundred fifteen
Scientific notation
2.0804815 × 10^7
Engineering notation
2.0804815 × 10^6
Prime Factorization
5 × 881 × 4723
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20804815
Product of the distinct prime numbers
The prime factorization of 20804815 is 5 × 881 × 4723.
Since it has a total of 3 prime factors.
1 , 4 , 64 , 5 , 987 , 617 , 8471 , 2116 , 19537 , 20175 , 725223 , 550910 , 9910737 , 991160 , 36896596 , 77115597 , 966628307 , 596087945 , 2388974435 , 6815371471
n×2
41609630
n×3
62414445
n×4
83219260
n×5
104024075
n÷2
10402407.5
n÷3
6934938.3333333
n÷3
5201203.75
n÷5
4160963
n2
432840327184225
n3
9.0051629316073E+21
n4
1.8735074883695E+29
n5
3.8977976696641E+36
2 √n
4561.2295491457
3 √n
275.03499279228
4 √n
67.536875476629
5 √n
29.082569302066
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
-20804814
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 20804815 can be divided by 8 positive divisors.
The sum of these divisors (counting 20804815) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010111010011001111
3
Ternary
1110010222211201
4
Quaternary
1033113103033
5
Quinary
20311223230
6
Senary
2021530331
8
Octal
117272317
10
Decimal
20804815
12
Duodecimal
6b739a7
16
Hexadecimal
13d74cf
20
Vigesimal
6a0c0f
36
Base36
cdx3j
md5
702d357b7745557867467d03a868c1bc
sha1
aeaa5a364c10bb94463a3ff6ac69d8ae3319101c
sha256
fc2174e1f0a38b84fa7c926575df06d97651e36809d3aa2ba17cf1dd7a3325b9
sha512
9f398d4dd4f5615afff2c1539ad0e3d6917ed47a771a4eeb11a3fd43246b9ac48c6cb08021df139901931a43a5ee56c766f53b6df716691beb2ddf81d01a90a0
ripemd-160
4dc8b9a122610164eac4f1352e0d37ac2ce551bf
Diameter
41609630
Circumference
130720507.92659
Area
1.3598079920594E+15
Volume
3.7720738280422E+22
Surface area
5.4392319682375E+15
Circumference
130720507.92659
Perimeter
83219260
Area
432840327184225
Diagonal
29422451.535663
Surface area
2597041963105350
Volume
9.0051629316073E+21
Space diagonal
36034996.622071
Perimeter
62414445
Area
1.8742535956195E+14
Altitude
18017498.311036
Surface area
1.8742535956195E+14
Volume
1.0612686291049E+21
Height
9807483.8452211