20921382 is an even 8-digits composite number following 20921381
and preceding 20921383 . In scientific notation, it is written as 2.0921382 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 6973776 positive integers (up to 20921382) that are relatively prime to 20921382.
20921382 has 8 divisors, whose sum is 32544456
The reverse of 20921382 is 28312902
Previous prime number is 27
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million nine hundred twenty-one thousand three hundred eighty-two
Scientific notation
2.0921382 × 10^7
Engineering notation
2.0921382 × 10^6
Prime Factorization
2 × 27 × 387433
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921382
Product of the distinct prime numbers
The prime factorization of 20921382 is 2 × 27 × 387433.
Since it has a total of 3 prime factors.
3 , 5 , 6 , 73 , 612 , 386 , 9106 , 8635 , 40709 , 43574 , 815525 , 609423 , 4323962 , 2589439 , 59104539 , 59292555 , 953061501 , 843251518 , 7116342893 , 5744906284
n×2
41842764
n×3
62764146
n×4
83685528
n×5
104606910
n÷2
10460691
n÷3
6973794
n÷3
5230345.5
n÷5
4184276.4
n2
437704224789924
n3
9.1573772898439E+21
n4
1.9158498839895E+29
n5
4.00822272776E+36
2 √n
4573.9897245184
3 √n
275.54769964259
4 √n
67.631277708753
5 √n
29.115085771281
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921381
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921382 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921382) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110000100110
3
Ternary
1110100220202000
4
Quaternary
1033303300212
5
Quinary
20323441012
6
Senary
2024230130
8
Octal
117636046
10
Decimal
20921382
12
Duodecimal
700b346
16
Hexadecimal
13f3c26
20
Vigesimal
6af392
36
Base36
cgf1i
md5
6085f95cabc2d6bf524d2c69d63189ad
sha1
3075c416b7a288b655a8d904856788cfc3fe60ba
sha256
0b18281b60d1660697170eba0488094d6f6bfd4b81a26dd1b7af39c304b8d313
sha512
5a8e11d15af1ba5e55be4bec97e7ef779d05a9058d34b140ec3364f76e8af53650c48a9be90b35aa608d30849c5eabef227721942460f82c9fab243c8bbc0df7
ripemd-160
bda03c554d6bf2d9be6eab16a606fc5d74774fa1
Diameter
41842764
Circumference
131452919.98829
Area
1.3750883770452E+15
Volume
3.8358332293231E+22
Surface area
5.500353508181E+15
Circumference
131452919.98829
Perimeter
83685528
Area
437704224789924
Diagonal
29587302.167988
Surface area
2626225348739544
Volume
9.1573772898439E+21
Space diagonal
36236896.588557
Perimeter
62764146
Area
1.8953148900592E+14
Altitude
18118448.294278
Surface area
1.8953148900592E+14
Volume
1.0792072632554E+21
Height
9862434.0559961