20506871 is an odd 8-digits composite number following 20506870
and preceding 20506872 . In scientific notation, it is written as 2.0506871 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 32 positive divisors.
There are 14882400 positive integers (up to 20506871) that are relatively prime to 20506871.
20506871 has 32 divisors, whose sum is 27371520
The reverse of 20506871 is 17860502
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million five hundred six thousand eight hundred seventy-one
Scientific notation
2.0506871 × 10^7
Engineering notation
2.0506871 × 10^6
Prime Factorization
7 × 11 × 19 × 131 × 107
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20506871
Product of the distinct prime numbers
The prime factorization of 20506871 is 7 × 11 × 19 × 131 × 107.
Since it has a total of 5 prime factors.
1 , 3 , 13 , 98 , 277 , 112 , 8869 , 7285 , 55430 , 50816 , 545219 , 165926 , 3416723 , 4631784 , 58139825 , 10619705 , 400593836 , 910923748 , 7348872980 , 5402521702
n×2
41013742
n×3
61520613
n×4
82027484
n×5
102534355
n÷2
10253435.5
n÷3
6835623.6666667
n÷3
5126717.75
n÷5
4101374.2
n2
420531758210641
n3
8.6237905170288E+21
n4
1.7684695966373E+29
n5
3.6265777885664E+36
2 √n
4528.4512805152
3 √n
273.71575741214
4 √n
67.293768511767
5 √n
28.99879019599
1 , 7 , 11 , 19 , 77 , 107 , 131 , 133 , 209 , 749 , 917 , 1177 , 1441 , 1463 , 2033 , 2489 , 8239 , 10087 , 14017 , 14231 , 17423 , 22363 , 27379 , 98119 , 154187 , 156541 , 191653 , 266323 , 1079309 , 1864261 , 2929553 , 20506871
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20506870
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20506871 can be divided by 32 positive divisors.
The sum of these divisors (counting 20506871) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110001110100011110111
3
Ternary
1102120212010202
4
Quaternary
1032032203313
5
Quinary
20222204441
6
Senary
2011311115
8
Octal
116164367
10
Decimal
20506871
12
Duodecimal
6a4b49b
16
Hexadecimal
138e8f7
20
Vigesimal
68373b
36
Base36
c7j7b
md5
f3e0fa8250e661ace4dba340ba9979e7
sha1
b66c8857a4c38d42ead6898b9184d9320caeeb09
sha256
8a4095fc15f0a3b1a650f2c0e2b146a14ab59e1329f38269e2b76e77a4cea3b9
sha512
7de9b88ac4e994678747b65395915f3c4c93ce3603ffd22a4c475c6f078ddade532a3d90d5f14175277d67620910a3a08bac5bffe586e96e4344c06b10d2049d
ripemd-160
1834a1231ba747eee53a72b57a9868d180b47b65
Diameter
41013742
Circumference
128848470.56343
Area
1.3211394821957E+15
Volume
3.612324924586E+22
Surface area
5.284557928783E+15
Circumference
128848470.56343
Perimeter
82027484
Area
420531758210641
Diagonal
29001095.090036
Surface area
2523190549263846
Volume
8.6237905170288E+21
Space diagonal
35518942.476261
Perimeter
61520613
Area
1.8209559285428E+14
Altitude
17759471.23813
Surface area
1.8209559285428E+14
Volume
1.0163234590206E+21
Height
9667031.6966785