20665931 is an odd 8-digits composite number following 20665930
and preceding 20665932 . In scientific notation, it is written as 2.0665931 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 16320000 positive integers (up to 20665931) that are relatively prime to 20665931.
20665931 has 16 divisors, whose sum is 25710048
The reverse of 20665931 is 13956602
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million six hundred sixty-five thousand nine hundred thirty-one
Scientific notation
2.0665931 × 10^7
Engineering notation
2.0665931 × 10^6
Prime Factorization
17 × 11 × 13 × 8501
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20665931
Product of the distinct prime numbers
The prime factorization of 20665931 is 17 × 11 × 13 × 8501.
Since it has a total of 4 prime factors.
6 , 6 , 60 , 23 , 740 , 934 , 9002 , 444 , 21373 , 3228 , 595859 , 641729 , 6887590 , 9470239 , 29739769 , 91214836 , 600233280 , 890130588 , 2154673764 , 5580879716
n×2
41331862
n×3
61997793
n×4
82663724
n×5
103329655
n÷2
10332965.5
n÷3
6888643.6666667
n÷3
5166482.75
n÷5
4133186.2
n2
427080704096761
n3
8.8260203622951E+21
n4
1.8239792781179E+29
n5
3.7694229907013E+36
2 √n
4545.9796523962
3 √n
274.42162077087
4 √n
67.423880431166
5 √n
29.043636658019
1 , 11 , 13 , 17 , 143 , 187 , 221 , 2431 , 8501 , 93511 , 110513 , 144517 , 1215643 , 1589687 , 1878721 , 20665931
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
-20665930
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 20665931 can be divided by 16 positive divisors.
The sum of these divisors (counting 20665931) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110110101011001001011
3
Ternary
1102212221022212
4
Quaternary
1032311121023
5
Quinary
20242302211
6
Senary
2014535335
8
Octal
116653113
10
Decimal
20665931
12
Duodecimal
6b0754b
16
Hexadecimal
13b564b
20
Vigesimal
6934gb
36
Base36
caxxn
md5
c98d0e1746ee1fc7534f2cb6494819ba
sha1
fd77231e45251f2a28350b9ee3063faafbe17ea8
sha256
34ba0e68b725f78fa50f51c39e64edee1c5d588986486faa5571513693d60fa2
sha512
221155e36c7051fe37058c8a8c24629adc02b2139a1ef8cbda565f054ba1ead1a275e04c54ea6e497986154dcde1a568ee399082ec7344558fc35c13b94f1d53
ripemd-160
9f8ee4c4174cd7863c7ac20ba06cdc0437e1c38d
Diameter
41331862
Circumference
129847874.01839
Area
1.3417136024803E+15
Volume
3.6970347640827E+22
Surface area
5.3668544099214E+15
Circumference
129847874.01839
Perimeter
82663724
Area
427080704096761
Diagonal
29226039.899267
Surface area
2562484224580566
Volume
8.8260203622951E+21
Space diagonal
35794442.477713
Perimeter
61997793
Area
1.8493136960697E+14
Altitude
17897221.238856
Surface area
1.8493136960697E+14
Volume
1.0401564748449E+21
Height
9742013.2997555