20705439 is an odd 8-digits composite number following 20705438
and preceding 20705440 . In scientific notation, it is written as 2.0705439 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12991616 positive integers (up to 20705439) that are relatively prime to 20705439.
20705439 has 8 divisors, whose sum is 29231280
The reverse of 20705439 is 93450702
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million seven hundred five thousand four hundred thirty-nine
Scientific notation
2.0705439 × 10^7
Engineering notation
2.0705439 × 10^6
Prime Factorization
3 × 17 × 405989
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20705439
Product of the distinct prime numbers
The prime factorization of 20705439 is 3 × 17 × 405989.
Since it has a total of 3 prime factors.
8 , 5 , 80 , 83 , 874 , 786 , 5349 , 2991 , 68997 , 95811 , 475070 , 782560 , 3948346 , 3508586 , 72759371 , 75390817 , 447107854 , 68204168 , 8624218787 , 9832526408
n×2
41410878
n×3
62116317
n×4
82821756
n×5
103527195
n÷2
10352719.5
n÷3
6901813
n÷3
5176359.75
n÷5
4141087.8
n2
428715204182721
n3
8.8767365085779E+21
n4
1.8379672629743E+29
n5
3.8055919047512E+36
2 √n
4550.3229555714
3 √n
274.59638421398
4 √n
67.456081679648
5 √n
29.05473298409
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
-20705438
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 20705439 can be divided by 8 positive divisors.
The sum of these divisors (counting 20705439) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111111000010011111
3
Ternary
1102221221112010
4
Quaternary
1032333002133
5
Quinary
20300033224
6
Senary
2015442303
8
Octal
116770237
10
Decimal
20705439
12
Duodecimal
6b26393
16
Hexadecimal
13bf09f
20
Vigesimal
6983bj
36
Base36
cbsf3
md5
67c08ff90e38dfc881e318abe4bc4d7f
sha1
ed2397ce5553242123a957057cd9ebffd2325cda
sha256
88debafb4a10e22f26c73fc8370841194855cda721f8ef2b8a476230f793882d
sha512
95dc1beec5aa67ba4ffbfc6bf7b4e036eb89cf96bee1a917e56ba749b4119f20cfda90e524ab94f23fae95e7c192166e49ad07582d0d38f6815ccb333433cce2
ripemd-160
b1878fd55b293a9aeceb79d6ad124de13636cbfc
Diameter
41410878
Circumference
130096110.1035
Area
1.3468485359427E+15
Volume
3.7182786937601E+22
Surface area
5.3873941437707E+15
Circumference
130096110.1035
Perimeter
82821756
Area
428715204182721
Diagonal
29281912.648689
Surface area
2572291225096326
Volume
8.8767365085779E+21
Space diagonal
35862872.341018
Perimeter
62116317
Area
1.8563912890543E+14
Altitude
17931436.170509
Surface area
1.8563912890543E+14
Volume
1.0461334300036E+21
Height
9760637.5495629