20805624 is an even 8-digits composite number following 20805623
and preceding 20805625 . In scientific notation, it is written as 2.0805624 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors.
There are 5944320 positive integers (up to 20805624) that are relatively prime to 20805624.
20805624 has 16 divisors, whose sum is 39630720
The reverse of 20805624 is 42650802
Previous prime number is 63
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million eight hundred five thousand six hundred twenty-four
Scientific notation
2.0805624 × 10^7
Engineering notation
2.0805624 × 10^6
Prime Factorization
2 × 2 × 2 × 63 × 41281
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5201406
Product of the distinct prime numbers
The prime factorization of 20805624 is 2 × 2 × 2 × 63 × 41281.
Since it has a total of 5 prime factors.
9 , 3 , 81 , 65 , 599 , 95 , 2073 , 6228 , 5106 , 53110 , 951407 , 302369 , 8521487 , 1126601 , 30115085 , 41638739 , 27349949 , 108630484 , 7828408198 , 5810618890
n×2
41611248
n×3
62416872
n×4
83222496
n×5
104028120
n÷2
10402812
n÷3
6935208
n÷3
5201406
n÷5
4161124.8
n2
432873990029376
n3
9.0062134759309E+21
n4
1.8737989124395E+29
n5
3.8985555623826E+36
2 √n
4561.3182305119
3 √n
275.03855767898
4 √n
67.537532013776
5 √n
29.082795475023
1 , 2 , 4 , 8 , 63 , 126 , 252 , 504 , 41281 , 82562 , 165124 , 330248 , 2600703 , 5201406 , 10402812 , 20805624
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20805623
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20805624 can be divided by 16 positive divisors.
The sum of these divisors (counting 20805624) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010111011111111000
3
Ternary
1110011000221200
4
Quaternary
1033113133320
5
Quinary
20311234444
6
Senary
2021534200
8
Octal
117273770
10
Decimal
20805624
12
Duodecimal
6b74360
16
Hexadecimal
13d77f8
20
Vigesimal
6a0e14
36
Base36
cdxq0
md5
e0db07a6410a7691f1179392056970fd
sha1
3cc90a4e351982c8719436e3ed6f86a8db350b32
sha256
a9b45f76304691747b344ae0b647863616084d11273b068cf340775c0487387a
sha512
41786c2dbdfb770253eac2b515efb63dbb9e6760149f3d304be66f70017cacc5aac181754e5716222e83ff42f5505cd7922257ae2c036f67cea00d8d3f3fe847
ripemd-160
d9b003ce8fc2baf6daeb7016fade2d641c4370e9
Diameter
41611248
Circumference
130725591.0235
Area
1.3599137470064E+15
Volume
3.7725138790195E+22
Surface area
5.4396549880256E+15
Circumference
130725591.0235
Perimeter
83222496
Area
432873990029376
Diagonal
29423595.634435
Surface area
2597243940176256
Volume
9.0062134759309E+21
Space diagonal
36036397.851174
Perimeter
62416872
Area
1.8743993600149E+14
Altitude
18018198.925587
Surface area
1.8743993600149E+14
Volume
1.0613924369407E+21
Height
9807865.2114784