20478906 is an even 8-digits composite number following 20478905
and preceding 20478907 . In scientific notation, it is written as 2.0478906 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 5850792 positive integers (up to 20478906) that are relatively prime to 20478906.
20478906 has 16 divisors, whose sum is 33374880
The reverse of 20478906 is 60987402
Previous prime number is 21
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million four hundred seventy-eight thousand nine hundred six
Scientific notation
2.0478906 × 10^7
Engineering notation
2.0478906 × 10^6
Prime Factorization
2 × 27 × 21 × 18059
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20478906
Product of the distinct prime numbers
The prime factorization of 20478906 is 2 × 27 × 21 × 18059.
Since it has a total of 4 prime factors.
6 , 3 , 89 , 29 , 886 , 287 , 9904 , 9828 , 39274 , 76715 , 841460 , 186954 , 363054 , 5590666 , 76569933 , 17546410 , 961514802 , 985913477 , 2098775344 , 7443505842
n×2
40957812
n×3
61436718
n×4
81915624
n×5
102394530
n÷2
10239453
n÷3
6826302
n÷3
5119726.5
n÷5
4095781.2
n2
419385590956836
n3
8.5885580949595E+21
n4
1.7588427390221E+29
n5
3.6019175121217E+36
2 √n
4525.3625269143
3 √n
273.5912797313
4 √n
67.270814822732
5 √n
28.99087681043
1 , 2 , 21 , 27 , 42 , 54 , 567 , 1134 , 18059 , 36118 , 379239 , 487593 , 758478 , 975186 , 10239453 , 20478906
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
-20478905
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 20478906 can be divided by 16 positive divisors.
The sum of these divisors (counting 20478906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000111101110111010
3
Ternary
1102112102210000
4
Quaternary
1032013232322
5
Quinary
20220311111
6
Senary
2010533430
8
Octal
116075672
10
Decimal
20478906
12
Duodecimal
6a37276
16
Hexadecimal
1387bba
20
Vigesimal
67jh56
36
Base36
c6xmi
md5
653a504d27565e347f99a179b40dc0b0
sha1
e1312252e42640fb83eb00df40e6c19e7e679dc7
sha256
ca66731da798c7c7c81d9b87c42da677ab8ded7601883c2370fe6820892e5e74
sha512
834772c25324885ac868a45d75dfba8a6d19a38921a4e406e4925f703e9b89f4edd113b97d62a2bb2e8dc479173b172960f5eb5e8372efb1870d0de5cb86798a
ripemd-160
6d4163bc04c056a1fa8a41f4c48b1d308d7ca059
Diameter
40957812
Circumference
128672761.28631
Area
1.3175386915714E+15
Volume
3.5975668021405E+22
Surface area
5.2701547662856E+15
Circumference
128672761.28631
Perimeter
81915624
Area
419385590956836
Diagonal
28961546.607764
Surface area
2516313545741016
Volume
8.5885580949595E+21
Space diagonal
35470505.675427
Perimeter
61436718
Area
1.8159928787488E+14
Altitude
17735252.837714
Surface area
1.8159928787488E+14
Volume
1.0121712782601E+21
Height
9653848.8692546