20681620 is an even 8-digits composite number following 20681619
and preceding 20681621 . In scientific notation, it is written as 2.0681620 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 24 positive divisors.
There are 8253600 positive integers (up to 20681620) that are relatively prime to 20681620.
20681620 has 24 divisors, whose sum is 43531488
The reverse of 20681620 is 02618602
Previous prime number is 1811
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million six hundred eighty-one thousand six hundred twenty
Scientific notation
2.0681620 × 10^7
Engineering notation
2.0681620 × 10^6
Prime Factorization
2 × 2 × 5 × 1811 × 571
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10340810
Product of the distinct prime numbers
The prime factorization of 20681620 is 2 × 2 × 5 × 1811 × 571.
Since it has a total of 5 prime factors.
8 , 7 , 5 , 57 , 987 , 259 , 7602 , 8906 , 57144 , 37878 , 671647 , 735052 , 5876577 , 245708 , 20219358 , 75070094 , 208930121 , 520536816 , 1649301762 , 4623094743
n×2
41363240
n×3
62044860
n×4
82726480
n×5
103408100
n÷2
10340810
n÷3
6893873.3333333
n÷3
5170405
n÷5
4136324
n2
427729405824400
n3
8.846137034086E+21
n4
1.8295244460689E+29
n5
3.7837529374308E+36
2 √n
4547.704915669
3 √n
274.49104762537
4 √n
67.436673373388
5 √n
29.048045143725
1 , 2 , 4 , 5 , 10 , 20 , 571 , 1142 , 1811 , 2284 , 2855 , 3622 , 5710 , 7244 , 9055 , 11420 , 18110 , 36220 , 1034081 , 2068162 , 4136324 , 5170405 , 10340810 , 20681620
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681619
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681620 can be divided by 24 positive divisors.
The sum of these divisors (counting 20681620) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001110111001001110010100
3
Ternary
1102220201211221
4
Quaternary
1032321032110
5
Quinary
20243302440
6
Senary
2015140124
8
Octal
116711624
10
Decimal
20681620
12
Duodecimal
6b14644
16
Hexadecimal
13b9394
20
Vigesimal
695410
36
Base36
cba1g
md5
78e9f50ec3d837d95653440372b9ce1c
sha1
ab40543fc02f6f9e7b573e9615320537dd74be00
sha256
b0c3dd287504ce532096f18a3d3022672f8bf2fb19471b290e127ea996aef171
sha512
21ec6e32b33cfc92621907b75db2f1768804e83f39f006c39f6f7c5054ed0ecbae16c0e216b7a2f883b5eced9db7b64d68ccb401a71900f937aee7c4a5c49a63
ripemd-160
d19d7bd8a349eb52630bee032882b28804b877b7
Diameter
41363240
Circumference
129946450.91267
Area
1.3437515590623E+15
Volume
3.7054612158578E+22
Surface area
5.375006236249E+15
Circumference
129946450.91267
Perimeter
82726480
Area
427729405824400
Diagonal
29248227.495847
Surface area
2566376434946400
Volume
8.846137034086E+21
Space diagonal
35821616.622833
Perimeter
62044860
Area
1.8521226569478E+14
Altitude
17910808.311416
Surface area
1.8521226569478E+14
Volume
1.0425272473513E+21
Height
9749409.1652822