20685087 is an odd 8-digits composite number following 20685086
and preceding 20685088 . In scientific notation, it is written as 2.0685087 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 13790052 positive integers (up to 20685087) that are relatively prime to 20685087.
20685087 has 4 divisors, whose sum is 22983440
The reverse of 20685087 is 78058602
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred eighty-five thousand eighty-seven
Scientific notation
2.0685087 × 10^7
Engineering notation
2.0685087 × 10^6
Prime Factorization
9 × 2298343
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20685087
Product of the distinct prime numbers
The prime factorization of 20685087 is 9 × 2298343.
Since it has a total of 2 prime factors.
3 , 3 , 65 , 86 , 82 , 59 , 8952 , 3676 , 76364 , 6274 , 110900 , 476025 , 6529969 , 3799444 , 65547915 , 14448358 , 86096358 , 863584154 , 5682272704 , 9221485629
n×2
41370174
n×3
62055261
n×4
82740348
n×5
103425435
n÷2
10342543.5
n÷3
6895029
n÷3
5171271.75
n÷5
4137017.4
n2
427872824197569
n3
8.8505865934624E+21
n4
1.830751536868E+29
n5
3.7869254815499E+36
2 √n
4548.0860809796
3 √n
274.50638503268
4 √n
67.439499412285
5 √n
29.049018982526
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
-20685086
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 20685087 can be divided by 4 positive divisors.
The sum of these divisors (counting 20685087) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010000100011111
3
Ternary
1102220220121100
4
Quaternary
1032322010133
5
Quinary
20243410322
6
Senary
2015204143
8
Octal
116720437
10
Decimal
20685087
12
Duodecimal
6b16653
16
Hexadecimal
13ba11f
20
Vigesimal
695ce7
36
Base36
cbcpr
md5
499382064a7eda7a74a4601a98057448
sha1
508b641d3375e1ee75c12ba7ff455170f9b3165f
sha256
538861c1f60cdbcd8664cf5491ded26a78c7c56237cf7ca2c79725a659817580
sha512
3b8ab0d8b97d8a9cec6a9ca8bfd9b2827f386b4c19d152d017a2df243fd4b4670fe84d34983de98450c98ed647c552b732e851c31587d8e1c8c3826e1fa9dfaa
ripemd-160
4ad8ad3afaa814bd943718b14ba60f2c898cbb29
Diameter
41370174
Circumference
129968234.71613
Area
1.3442021211698E+15
Volume
3.7073250429309E+22
Surface area
5.3768084846792E+15
Circumference
129968234.71613
Perimeter
82740348
Area
427872824197569
Diagonal
29253130.574267
Surface area
2567236945185414
Volume
8.8505865934624E+21
Space diagonal
35827621.642982
Perimeter
62055261
Area
1.8527436767204E+14
Altitude
17913810.821491
Surface area
1.8527436767204E+14
Volume
1.0430516329527E+21
Height
9751043.5247558