20087809 is an odd 8-digits composite number following 20087808
and preceding 20087810 . In scientific notation, it is written as 2.0087809 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 16469376 positive integers (up to 20087809) that are relatively prime to 20087809.
20087809 has 8 divisors, whose sum is 23955840
The reverse of 20087809 is 90878002
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eighty-seven thousand eight hundred nine
Scientific notation
2.0087809 × 10^7
Engineering notation
2.0087809 × 10^6
Prime Factorization
7 × 23 × 124769
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20087809
Product of the distinct prime numbers
The prime factorization of 20087809 is 7 × 23 × 124769.
Since it has a total of 3 prime factors.
4 , 1 , 88 , 57 , 746 , 49 , 8916 , 4497 , 18820 , 82456 , 705726 , 706440 , 8445713 , 3776794 , 37307904 , 76099206 , 879996748 , 406583372 , 2333641377 , 1115371231
n×2
40175618
n×3
60263427
n×4
80351236
n×5
100439045
n÷2
10043904.5
n÷3
6695936.3333333
n÷3
5021952.25
n÷5
4017561.8
n2
403520070420481
n3
8.1058341022732E+21
n4
1.6282844723215E+29
n5
3.270866747766E+36
2 √n
4481.9425476014
3 √n
271.83843219808
4 √n
66.947311727966
5 √n
28.879290146914
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20087808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20087809 can be divided by 8 positive divisors.
The sum of these divisors (counting 20087809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101000010000000001
3
Ternary
1101210120021221
4
Quaternary
1030220100001
5
Quinary
20120302214
6
Senary
1554315041
8
Octal
114502001
10
Decimal
20087809
12
Duodecimal
6888a81
16
Hexadecimal
1328401
20
Vigesimal
65aja9
36
Base36
byjup
md5
a5aa5a31674877d9625aa0f998dfa72c
sha1
6bf1bf6a32683c289ee9b1dc205e814e77a6895a
sha256
552c2371df04273f0d03ec0863fe825dbd86b524c405e89cf2ce4028a0020b0b
sha512
6bcc06af34a590f909f966b37d5147c17fc5e65d51c3e0f6157d735a489790000800cf2a3eceba6b499fca1f5146565427aff9e90b6f446459de33501336c94b
ripemd-160
6b72e07d39453e346cf94cddb597756ebc0430fc
Diameter
40175618
Circumference
126215426.36223
Area
1.267695688809E+15
Volume
3.3953638489225E+22
Surface area
5.0707827552361E+15
Circumference
126215426.36223
Perimeter
80351236
Area
403520070420481
Diagonal
28408451.92616
Surface area
2421120422522886
Volume
8.1058341022732E+21
Space diagonal
34793105.800739
Perimeter
60263427
Area
1.7472931596051E+14
Altitude
17396552.90037
Surface area
1.7472931596051E+14
Volume
9.5528171014842E+20
Height
9469483.9753868