20781716 is an even 8-digits composite number following 20781715
and preceding 20781717 . In scientific notation, it is written as 2.0781716 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 10109952 positive integers (up to 20781716) that are relatively prime to 20781716.
20781716 has 12 divisors, whose sum is 37351188
The reverse of 20781716 is 61718702
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million seven hundred eighty-one thousand seven hundred sixteen
Scientific notation
2.0781716 × 10^7
Engineering notation
2.0781716 × 10^6
Prime Factorization
2 × 2 × 37 × 140417
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10390858
Product of the distinct prime numbers
The prime factorization of 20781716 is 2 × 2 × 37 × 140417.
Since it has a total of 4 prime factors.
8 , 5 , 21 , 78 , 561 , 244 , 5279 , 2571 , 71609 , 19867 , 736064 , 37485 , 4552583 , 9384753 , 87386801 , 31586997 , 651774294 , 953783464 , 8704430542 , 8670176439
n×2
41563432
n×3
62345148
n×4
83126864
n×5
103908580
n÷2
10390858
n÷3
6927238.6666667
n÷3
5195429
n÷5
4156343.2
n2
431879719904656
n3
8.9752016852181E+21
n4
1.8652009246492E+29
n5
3.8762075898998E+36
2 √n
4558.696743588
3 √n
274.93316723014
4 √n
67.518121594043
5 √n
29.076108520657
1 , 2 , 4 , 37 , 74 , 148 , 140417 , 280834 , 561668 , 5195429 , 10390858 , 20781716
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20781715
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20781716 can be divided by 12 positive divisors.
The sum of these divisors (counting 20781716) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010001101010010100
3
Ternary
1110002211011012
4
Quaternary
1033101222110
5
Quinary
20310003331
6
Senary
2021231352
8
Octal
117215224
10
Decimal
20781716
12
Duodecimal
6b62558
16
Hexadecimal
13d1a94
20
Vigesimal
69he5g
36
Base36
cdf9w
md5
61a34caa91c53e9ad83bb653dcfd2f33
sha1
b62ebd8af7a1b851c8ed3a02a73e2f843352bf1e
sha256
bc405984b78cd4afeb635bcbdd6c3417bc21608f3b24adf2785d1aba0ceaebb5
sha512
4e86b20ea327be3584572952c5da3da38be44f629fab96d899859c3b0ae07fee8f2a09f080ee3e1234c25a86525e6e2cf878a6a0211328ea73ad14b855143983
ripemd-160
0ce3162665d6293deb3e6a5f670a6a38e579d8ed
Diameter
41563432
Circumference
130575372.62918
Area
1.3567901552869E+15
Volume
3.7595236905024E+22
Surface area
5.4271606211475E+15
Circumference
130575372.62918
Perimeter
83126864
Area
431879719904656
Diagonal
29389784.616586
Surface area
2591278319427936
Volume
8.9752016852181E+21
Space diagonal
35994987.980467
Perimeter
62345148
Area
1.8700940440837E+14
Altitude
17997493.990234
Surface area
1.8700940440837E+14
Volume
1.0577376623558E+21
Height
9796594.8721953