20685961 is an odd 8-digits composite number following 20685960
and preceding 20685962 . In scientific notation, it is written as 2.0685961 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 19972624 positive integers (up to 20685961) that are relatively prime to 20685961.
20685961 has 4 divisors, whose sum is 21399300
The reverse of 20685961 is 16958602
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred eighty-five thousand nine hundred sixty-one
Scientific notation
2.0685961 × 10^7
Engineering notation
2.0685961 × 10^6
Prime Factorization
29 × 713309
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20685961
Product of the distinct prime numbers
The prime factorization of 20685961 is 29 × 713309.
Since it has a total of 2 prime factors.
5 , 6 , 6 , 22 , 627 , 147 , 5648 , 4959 , 47667 , 29744 , 795776 , 882989 , 1010468 , 8744603 , 76843122 , 58394673 , 39360945 , 723275948 , 1360256630 , 246427203
n×2
41371922
n×3
62057883
n×4
82743844
n×5
103429805
n÷2
10342980.5
n÷3
6895320.3333333
n÷3
5171490.25
n÷5
4137192.2
n2
427908982493521
n3
8.8517085234107E+21
n4
1.8310609729864E+29
n5
3.7877255875819E+36
2 √n
4548.1821643377
3 √n
274.51025118678
4 √n
67.4402117756
5 √n
29.049264458057
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
-20685960
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 20685961 can be divided by 4 positive divisors.
The sum of these divisors (counting 20685961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010010010001001
3
Ternary
1102220221210201
4
Quaternary
1032322102021
5
Quinary
20243422321
6
Senary
2015212201
8
Octal
116722211
10
Decimal
20685961
12
Duodecimal
6b17061
16
Hexadecimal
13ba489
20
Vigesimal
695ei1
36
Base36
cbde1
md5
a19281531546ea8e2d615f5561a8af15
sha1
a36a628305a772e34a4701b7290a94fbdeff9545
sha256
10fdfebcc8eb7da542620846679e050298e8c2ff5052c7028635e82f3589f3f7
sha512
29aa77da5a7ba32a638b8f09c76b36d59fb9e1787dcc39583381c8832b6780d45736520660ad70bbd14fbe1d0e6bf7fce8a253974633cd530598315542b768b2
ripemd-160
50ddac92b6b387804febb813eedafaf70f37bde8
Diameter
41371922
Circumference
129973726.22009
Area
1.3443157158067E+15
Volume
3.7077949958487E+22
Surface area
5.3772628632269E+15
Circumference
129973726.22009
Perimeter
82743844
Area
427908982493521
Diagonal
29254366.596921
Surface area
2567453894961126
Volume
8.8517085234107E+21
Space diagonal
35829135.455388
Perimeter
62057883
Area
1.8529002467347E+14
Altitude
17914567.727694
Surface area
1.8529002467347E+14
Volume
1.0431838536651E+21
Height
9751455.532307