20165809 is an odd 8-digits composite number following 20165808
and preceding 20165810 . In scientific notation, it is written as 2.0165809 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 19536000 positive integers (up to 20165809) that are relatively prime to 20165809.
20165809 has 8 divisors, whose sum is 20802600
The reverse of 20165809 is 90856102
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred sixty-five thousand eight hundred nine
Scientific notation
2.0165809 × 10^7
Engineering notation
2.0165809 × 10^6
Prime Factorization
41 × 149 × 3301
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20165809
Product of the distinct prime numbers
The prime factorization of 20165809 is 41 × 149 × 3301.
Since it has a total of 3 prime factors.
3 , 3 , 93 , 74 , 302 , 391 , 5698 , 898 , 46587 , 49953 , 361570 , 810882 , 2892878 , 4338574 , 67411340 , 62822383 , 912800870 , 196713111 , 841529270 , 776961634
n×2
40331618
n×3
60497427
n×4
80663236
n×5
100829045
n÷2
10082904.5
n÷3
6721936.3333333
n÷3
5041452.25
n÷5
4033161.8
n2
406659852624481
n3
8.2006249159934E+21
n4
1.6537223573656E+29
n5
3.3348649197665E+36
2 √n
4490.6357011007
3 √n
272.18982298166
4 √n
67.012205612863
5 √n
28.901682774096
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
-20165808
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 20165809 can be divided by 8 positive divisors.
The sum of these divisors (counting 20165809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111011010010110001
3
Ternary
1101221112021211
4
Quaternary
1030323102301
5
Quinary
20130301214
6
Senary
2000120121
8
Octal
114732261
10
Decimal
20165809
12
Duodecimal
6906041
16
Hexadecimal
133b4b1
20
Vigesimal
660ea9
36
Base36
c081d
md5
cdbae49bbe06e99972fb75dfdd8fcaf1
sha1
8287c40f3377a7370f92da431cc40fb47c38da66
sha256
e991b472f6db674dece037f75e239ce324111cbce3c23cc0addf9e4d8095b2f6
sha512
472bb8de30232384a2a1902ead124cad74a3408e92a70921058124066592431592bdab16887fddb978380c49b4b8c0e60642924189e10b73d03d563d489bbeb4
ripemd-160
8f8c11f7dc84ff246d3933abbb29ec6fa33c2002
Diameter
40331618
Circumference
126705514.81619
Area
1.277559605515E+15
Volume
3.4350697321241E+22
Surface area
5.1102384220599E+15
Circumference
126705514.81619
Perimeter
80663236
Area
406659852624481
Diagonal
28518760.584025
Surface area
2439959115746886
Volume
8.2006249159934E+21
Space diagonal
34928205.76373
Perimeter
60497427
Area
1.7608888153602E+14
Altitude
17464102.881865
Surface area
1.7608888153602E+14
Volume
9.6645291467772E+20
Height
9506253.5280085