20709405 is an odd 8-digits composite number following 20709404
and preceding 20709406 . In scientific notation, it is written as 2.0709405 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 10970496 positive integers (up to 20709405) that are relatively prime to 20709405.
20709405 has 16 divisors, whose sum is 24710400
The reverse of 20709405 is 50490702
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million seven hundred nine thousand four hundred five
Scientific notation
2.0709405 × 10^7
Engineering notation
2.0709405 × 10^6
Prime Factorization
9 × 15 × 179 × 857
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20709405
Product of the distinct prime numbers
The prime factorization of 20709405 is 9 × 15 × 179 × 857.
Since it has a total of 4 prime factors.
5 , 3 , 9 , 95 , 20 , 374 , 3997 , 2372 , 20870 , 8570 , 796190 , 866254 , 5144924 , 2508362 , 62330959 , 20033125 , 767866014 , 796879123 , 9555011720 , 1595585037
n×2
41418810
n×3
62128215
n×4
82837620
n×5
103547025
n÷2
10354702.5
n÷3
6903135
n÷3
5177351.25
n÷5
4141881
n2
428879455454025
n3
8.8818383391769E+21
n4
1.8393758731054E+29
n5
3.8092379903369E+36
2 √n
4550.7587279486
3 √n
274.6139155131
4 √n
67.459311647456
5 √n
29.055845950044
1 , 9 , 15 , 135 , 179 , 857 , 1611 , 2685 , 7713 , 12855 , 24165 , 115695 , 153403 , 1380627 , 2301045 , 20709405
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
-20709404
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 20709405 can be divided by 16 positive divisors.
The sum of these divisors (counting 20709405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111000000000000011101
3
Ternary
1102222010222000
4
Quaternary
1033000000131
5
Quinary
20300200110
6
Senary
2015512513
8
Octal
117000035
10
Decimal
20709405
12
Duodecimal
6b28739
16
Hexadecimal
13c001d
20
Vigesimal
698da5
36
Base36
cbvh9
md5
f6ea22cdb7ef0a14326aa0a71c7220d7
sha1
6c9ca8b90f7908e5d0592ed8faa989d0b6677522
sha256
57b7520546cd8cf22d66c11ff72b3d6bdd68d103f58e02cf969c5b35db47f4c4
sha512
624c34d460944b15b13614ae8dde8c1b483d90b34b14230d528a1f87582595066ae243fa4bfd633fa1173ed59964c0df1322116442d7fdf51e337c8b6319732b
ripemd-160
e8c57ad8346a4313d4a167550bbda86a4e5072b2
Diameter
41418810
Circumference
130121029.21643
Area
1.34736454653E+15
Volume
3.720415743564E+22
Surface area
5.3894581861198E+15
Circumference
130121029.21643
Perimeter
82837620
Area
428879455454025
Diagonal
29287521.419677
Surface area
2573276732724150
Volume
8.8818383391769E+21
Space diagonal
35869741.654521
Perimeter
62128215
Area
1.8571025179221E+14
Altitude
17934870.82726
Surface area
1.8571025179221E+14
Volume
1.0467346865058E+21
Height
9762507.1398924