20705979 is an odd 8-digits composite number following 20705978
and preceding 20705980 . In scientific notation, it is written as 2.0705979 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 11675664 positive integers (up to 20705979) that are relatively prime to 20705979.
20705979 has 16 divisors, whose sum is 25118720
The reverse of 20705979 is 97950702
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million seven hundred five thousand nine hundred seventy-nine
Scientific notation
2.0705979 × 10^7
Engineering notation
2.0705979 × 10^6
Prime Factorization
7 × 21 × 79 × 1783
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20705979
Product of the distinct prime numbers
The prime factorization of 20705979 is 7 × 21 × 79 × 1783.
Since it has a total of 4 prime factors.
10 , 6 , 84 , 52 , 675 , 883 , 2271 , 8264 , 63220 , 75147 , 75103 , 987445 , 6792857 , 67946 , 6202757 , 95951391 , 337494763 , 568095677 , 8330326727 , 7191765076
n×2
41411958
n×3
62117937
n×4
82823916
n×5
103529895
n÷2
10352989.5
n÷3
6901993
n÷3
5176494.75
n÷5
4141195.8
n2
428737566348441
n3
8.8774310453219E+21
n4
1.8381590079838E+29
n5
3.8060881817974E+36
2 √n
4550.3822916322
3 √n
274.59877136064
4 √n
67.456521490751
5 √n
29.0548845326
1 , 7 , 21 , 79 , 147 , 553 , 1659 , 1783 , 11613 , 12481 , 37443 , 140857 , 262101 , 985999 , 2957997 , 20705979
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
-20705978
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 20705979 can be divided by 16 positive divisors.
The sum of these divisors (counting 20705979) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111111001010111011
3
Ternary
1102221222021010
4
Quaternary
1032333022323
5
Quinary
20300042404
6
Senary
2015445003
8
Octal
116771273
10
Decimal
20705979
12
Duodecimal
6b26763
16
Hexadecimal
13bf2bb
20
Vigesimal
6984ij
36
Base36
cbsu3
md5
a2cbc524e72ae07c3dcea9bf3c88ad2a
sha1
effd89fa33a6108f4f9442b95390de8a63333849
sha256
ae77477a7d3576894ec0ea51cec00d885a4dfe1d9dfe11c50d64cee3e255e085
sha512
515fd910144e4cb62e175521cea35f2e37760c4d18ded8a91b14f022dd12c1dde1c03920ef8795943bbdc15f09b84b34c8f818ac9be1234633d1ce57ea928721
ripemd-160
01e1bda1e087da8844137328e9b65ad6f91a74d6
Diameter
41411958
Circumference
130099503.02357
Area
1.3469187887582E+15
Volume
3.7185696206311E+22
Surface area
5.3876751550329E+15
Circumference
130099503.02357
Perimeter
82823916
Area
428737566348441
Diagonal
29282676.324012
Surface area
2572425398090646
Volume
8.8774310453219E+21
Space diagonal
35863807.648454
Perimeter
62117937
Area
1.8564881200723E+14
Altitude
17931903.824227
Surface area
1.8564881200723E+14
Volume
1.0462152819439E+21
Height
9760892.1080042