20766985 is an odd 8-digits composite number following 20766984
and preceding 20766986 . In scientific notation, it is written as 2.0766985 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 16365360 positive integers (up to 20766985) that are relatively prime to 20766985.
20766985 has 8 divisors, whose sum is 25292736
The reverse of 20766985 is 58966702
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million seven hundred sixty-six thousand nine hundred eighty-five
Scientific notation
2.0766985 × 10^7
Engineering notation
2.0766985 × 10^6
Prime Factorization
5 × 67 × 61991
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20766985
Product of the distinct prime numbers
The prime factorization of 20766985 is 5 × 67 × 61991.
Since it has a total of 3 prime factors.
2 , 8 , 9 , 70 , 66 , 714 , 3175 , 6606 , 86168 , 83255 , 162319 , 147061 , 9448048 , 8711756 , 4700635 , 81309492 , 559715101 , 843518429 , 7111980543 , 2176789032
n×2
41533970
n×3
62300955
n×4
83067940
n×5
103834925
n÷2
10383492.5
n÷3
6922328.3333333
n÷3
5191746.25
n÷5
4153397
n2
431267665990225
n3
8.956129150604E+21
n4
1.8599179972866E+29
n5
3.862488915088E+36
2 √n
4557.0807541671
3 √n
274.86819027615
4 √n
67.506153454089
5 √n
29.071985264895
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
-20766984
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 20766985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20766985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111001110000100001001
3
Ternary
1110002001221121
4
Quaternary
1033032010021
5
Quinary
20304020420
6
Senary
2021035241
8
Octal
117160411
10
Decimal
20766985
12
Duodecimal
6b55b21
16
Hexadecimal
13ce109
20
Vigesimal
69fh95
36
Base36
cd3wp
md5
3ad0fa44c42385c86cd87a17564e512b
sha1
e901fda41f38024417e88ec9ed683c40e1c3ac8e
sha256
0e4df3e9acff2889cd8549db0e504aeb22f1ca25b1394c54406061bdb2058159
sha512
ff747d36c1fedaff82a852ad779beaa2ba8067fbb01fe2fed960cbbff1209759ec0eb8625e7be16f255ea04787c3ee6cd98fc47073e0c301b674c7b2404b1ca1
ripemd-160
ca41b68cb9c9e20bf463f598a2a158d29d011abb
Diameter
41533970
Circumference
130482815.02642
Area
1.3548673312057E+15
Volume
3.7515346058852E+22
Surface area
5.4194693248228E+15
Circumference
130482815.02642
Perimeter
83067940
Area
431267665990225
Diagonal
29368951.836599
Surface area
2587605995941350
Volume
8.956129150604E+21
Space diagonal
35969473.140021
Perimeter
62300955
Area
1.8674437728918E+14
Altitude
17984736.57001
Surface area
1.8674437728918E+14
Volume
1.0554899425958E+21
Height
9789650.6121995