20280909 is an odd 8-digits composite number following 20280908
and preceding 20280910 . In scientific notation, it is written as 2.0280909 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12249600 positive integers (up to 20280909) that are relatively prime to 20280909.
20280909 has 16 divisors, whose sum is 29600064
The reverse of 20280909 is 90908202
Previous prime number is 1741
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred eighty thousand nine hundred nine
Scientific notation
2.0280909 × 10^7
Engineering notation
2.0280909 × 10^6
Prime Factorization
3 × 11 × 1741 × 353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20280909
Product of the distinct prime numbers
The prime factorization of 20280909 is 3 × 11 × 1741 × 353.
Since it has a total of 4 prime factors.
6 , 10 , 65 , 42 , 735 , 708 , 6749 , 7490 , 47524 , 81864 , 555014 , 65444 , 6950237 , 258551 , 75510339 , 89963300 , 759067266 , 207289272 , 414923530 , 480984577
n×2
40561818
n×3
60842727
n×4
81123636
n×5
101404545
n÷2
10140454.5
n÷3
6760303
n÷3
5070227.25
n÷5
4056181.8
n2
411315269866281
n3
8.3418475584685E+21
n4
1.6918025122517E+29
n5
3.4311292796948E+36
2 √n
4503.4330238164
3 √n
272.70669837722
4 √n
67.107622695312
5 √n
28.934600022911
1 , 3 , 11 , 33 , 353 , 1059 , 1741 , 3883 , 5223 , 11649 , 19151 , 57453 , 614573 , 1843719 , 6760303 , 20280909
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
-20280908
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 20280909 can be divided by 16 positive divisors.
The sum of these divisors (counting 20280909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101010111011001001101
3
Ternary
1102011101011210
4
Quaternary
1031113121031
5
Quinary
20142442114
6
Senary
2002405033
8
Octal
115273115
10
Decimal
20280909
12
Duodecimal
6960779
16
Hexadecimal
135764d
20
Vigesimal
66f259
36
Base36
c2oul
md5
7ad5e7741d9a187bdbb6c60aa28eadaa
sha1
a1f7527e665273958c694b03334fcc39c51a8d03
sha256
9bd8b9ad47f57a8b38422aee83530a46f1a0aef94e1df8522b4302f1a9c272e9
sha512
bea78f1659a2605ee714933582043ca2f9106adc76c3a61788b9d081ca34786103db237d6817ae2c14b6824221d3910f2159a341415e3361b20760fe264c2ef3
ripemd-160
82ea23fbaf695c0ecd4c2fc33c400f0add12c923
Diameter
40561818
Circumference
127428709.44505
Area
1.2921850301212E+15
Volume
3.4942249342734E+22
Surface area
5.1687401204848E+15
Circumference
127428709.44505
Perimeter
81123636
Area
411315269866281
Diagonal
28681536.565055
Surface area
2467891619197686
Volume
8.3418475584685E+21
Space diagonal
35127564.811681
Perimeter
60842727
Area
1.7810473633433E+14
Altitude
17563782.40584
Surface area
1.7810473633433E+14
Volume
9.8309616270292E+20
Height
9560512.1883515