20139809 is an odd 8-digits composite number following 20139808
and preceding 20139810 . In scientific notation, it is written as 2.0139809 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19985940 positive integers (up to 20139809) that are relatively prime to 20139809.
20139809 has 4 divisors, whose sum is 20293680
The reverse of 20139809 is 90893102
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred thirty-nine thousand eight hundred nine
Scientific notation
2.0139809 × 10^7
Engineering notation
2.0139809 × 10^6
Prime Factorization
131 × 153739
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20139809
Product of the distinct prime numbers
The prime factorization of 20139809 is 131 × 153739.
Since it has a total of 2 prime factors.
2 , 9 , 98 , 98 , 674 , 517 , 8813 , 5239 , 61075 , 88051 , 758502 , 293995 , 7527949 , 2484089 , 74585518 , 89341251 , 844474275 , 964962989 , 2732384706 , 5830878509
n×2
40279618
n×3
60419427
n×4
80559236
n×5
100699045
n÷2
10069904.5
n÷3
6713269.6666667
n÷3
5034952.25
n÷5
4027961.8
n2
405611906556481
n3
8.1689463261734E+21
n4
1.6452101874038E+29
n5
3.3134218939167E+36
2 √n
4487.7398543142
3 √n
272.07279355766
4 √n
66.990595267651
5 √n
28.89422627592
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20139808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20139809 can be divided by 4 positive divisors.
The sum of these divisors (counting 20139809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100111100100001
3
Ternary
1101220012121212
4
Quaternary
1030310330201
5
Quinary
20123433214
6
Senary
1555355505
8
Octal
114647441
10
Decimal
20139809
12
Duodecimal
68b2b95
16
Hexadecimal
1334f21
20
Vigesimal
65h9a9
36
Base36
bznz5
md5
f0eefd62cb2b36dbb415c26c46eddfce
sha1
67e2ddf3c15bdf166428fa5fa1121c6ffa541984
sha256
49804f2c025833856128ee268a2cfece4046580b18d91e8cc2f8b9263fe25e75
sha512
0ff5ad001be9bdab57a6f7190257e6c8dcfe4aebc2f22eab4b14cfce1260796b98c5968e47031fb3a0bee95cf0c9936b14f31bf29ee1d6a96dbe8e47facf6a0e
ripemd-160
b1d307361353de39d6034db7a7ea29d0d479335f
Diameter
40279618
Circumference
126542151.9982
Area
1.2742673858464E+15
Volume
3.4218002354501E+22
Surface area
5.0970695433856E+15
Circumference
126542151.9982
Perimeter
80559236
Area
405611906556481
Diagonal
28481991.031404
Surface area
2433671439338886
Volume
8.1689463261734E+21
Space diagonal
34883172.442733
Perimeter
60419427
Area
1.7563510757768E+14
Altitude
17441586.221366
Surface area
1.7563510757768E+14
Volume
9.6271955706435E+20
Height
9493997.0104679