20808549 is an odd 8-digits composite number following 20808548
and preceding 20808550 . In scientific notation, it is written as 2.0808549 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 13826160 positive integers (up to 20808549) that are relatively prime to 20808549.
20808549 has 16 divisors, whose sum is 30930240
The reverse of 20808549 is 94580802
Previous prime number is 347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million eight hundred eight thousand five hundred forty-nine
Scientific notation
2.0808549 × 10^7
Engineering notation
2.0808549 × 10^6
Prime Factorization
9 × 3 × 347 × 2221
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20808549
Product of the distinct prime numbers
The prime factorization of 20808549 is 9 × 3 × 347 × 2221.
Since it has a total of 4 prime factors.
3 , 6 , 53 , 33 , 154 , 594 , 3153 , 2767 , 66855 , 68668 , 882841 , 127787 , 3240181 , 3452341 , 29415642 , 82460964 , 255216549 , 103547353 , 9728786094 , 2618982336
n×2
41617098
n×3
62425647
n×4
83234196
n×5
104042745
n÷2
10404274.5
n÷3
6936183
n÷3
5202137.25
n÷5
4161709.8
n2
432995711485401
n3
9.0100124792338E+21
n4
1.8748528616475E+29
n5
3.9012967639382E+36
2 √n
4561.6388502379
3 √n
275.05144602244
4 √n
67.539905613185
5 √n
29.083613161562
1 , 3 , 9 , 27 , 347 , 1041 , 2221 , 3123 , 6663 , 9369 , 19989 , 59967 , 770687 , 2312061 , 6936183 , 20808549
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
-20808548
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 20808549 can be divided by 16 positive divisors.
The sum of these divisors (counting 20808549) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000001101100101
3
Ternary
1110011011222000
4
Quaternary
1033120031211
5
Quinary
20311333144
6
Senary
2021555513
8
Octal
117301545
10
Decimal
20808549
12
Duodecimal
6b75b99
16
Hexadecimal
13d8365
20
Vigesimal
6a1179
36
Base36
cdzz9
md5
ce73687981ec22107edf3c526d2fcfb1
sha1
092b65890eb676e991d7065a0474086bdbf83f07
sha256
8df1b0fc6e50fe8cc43f03296d846c708c0ed44a980a24210bfccdafe2423a08
sha512
eb1748171e11f9a5c0bfb2b62862ccb90d35c4122709d1040316eae02cce97fffa72c3805ae0ea50a72b5db573d598cbb81b35401492df941ee995b0dd5e00cc
ripemd-160
c0525f6411724a94e4c2a566099ce056276e62cc
Diameter
41617098
Circumference
130743969.34053
Area
1.3602961462384E+15
Volume
3.7741052018018E+22
Surface area
5.4411845849537E+15
Circumference
130743969.34053
Perimeter
83234196
Area
432995711485401
Diagonal
29427732.209105
Surface area
2597974268912406
Volume
9.0100124792338E+21
Space diagonal
36041464.099787
Perimeter
62425647
Area
1.8749264293804E+14
Altitude
18020732.049893
Surface area
1.8749264293804E+14
Volume
1.0618401537736E+21
Height
9809244.0697017