20782621 is an odd 8-digits composite number following 20782620
and preceding 20782622 . In scientific notation, it is written as 2.0782621 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20598592 positive integers (up to 20782621) that are relatively prime to 20782621.
20782621 has 4 divisors, whose sum is 20966652
The reverse of 20782621 is 12628702
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred eighty-two thousand six hundred twenty-one
Scientific notation
2.0782621 × 10^7
Engineering notation
2.0782621 × 10^6
Prime Factorization
113 × 183917
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20782621
Product of the distinct prime numbers
The prime factorization of 20782621 is 113 × 183917.
Since it has a total of 2 prime factors.
3 , 2 , 90 , 59 , 31 , 112 , 2575 , 7683 , 63300 , 4405 , 630953 , 862349 , 2763099 , 8440224 , 23870740 , 32190927 , 980919694 , 932022840 , 2350147730 , 5067312020
n×2
41565242
n×3
62347863
n×4
83130484
n×5
103913105
n÷2
10391310.5
n÷3
6927540.3333333
n÷3
5195655.25
n÷5
4156524.2
n2
431917335629641
n3
8.9763742897206E+21
n4
1.8655258481741E+29
n5
3.8770516668305E+36
2 √n
4558.7960033325
3 √n
274.9371580925
4 √n
67.518856650068
5 √n
29.076361756914
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20782620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20782621 can be divided by 4 positive divisors.
The sum of these divisors (counting 20782621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010001111000011101
3
Ternary
1110002212101201
4
Quaternary
1033101320131
5
Quinary
20310020441
6
Senary
2021235501
8
Octal
117217035
10
Decimal
20782621
12
Duodecimal
6b62b91
16
Hexadecimal
13d1e1d
20
Vigesimal
69hgb1
36
Base36
cdfz1
md5
1961d773fc8f1202a443778dc00244d5
sha1
0df81d058bb010bebde57c99fd5d208a7392eea6
sha256
3897ccf604f3b822b94771c3a8e942e2c9c7e4ba585f365faac89aeff801c740
sha512
6085302391df43a906bbf86231adac178ff13aef1ea0c2be48f1712a485f66bfd644faee008788df63270ec60713d2c5e99a8c1478a3458bef38659d13cf1b19
ripemd-160
c11413ea621881b752faf88f2c38a2871bed7ec5
Diameter
41565242
Circumference
130581058.91188
Area
1.3569083285722E+15
Volume
3.7600148699278E+22
Surface area
5.4276333142886E+15
Circumference
130581058.91188
Perimeter
83130484
Area
431917335629641
Diagonal
29391064.47986
Surface area
2591504013777846
Volume
8.9763742897206E+21
Space diagonal
35996555.486448
Perimeter
62347863
Area
1.8702569249508E+14
Altitude
17998277.743224
Surface area
1.8702569249508E+14
Volume
1.0578758551217E+21
Height
9797021.4932866