20921682 is an even 8-digits composite number following 20921681
and preceding 20921683 . In scientific notation, it is written as 2.0921682 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 6942720 positive integers (up to 20921682) that are relatively prime to 20921682.
20921682 has 16 divisors, whose sum is 42030432
The reverse of 20921682 is 28612902
Previous prime number is 227
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million nine hundred twenty-one thousand six hundred eighty-two
Scientific notation
2.0921682 × 10^7
Engineering notation
2.0921682 × 10^6
Prime Factorization
2 × 3 × 227 × 15361
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921682
Product of the distinct prime numbers
The prime factorization of 20921682 is 2 × 3 × 227 × 15361.
Since it has a total of 4 prime factors.
6 , 9 , 51 , 21 , 466 , 665 , 9138 , 2336 , 6607 , 76046 , 792434 , 861517 , 6957245 , 7480028 , 56496158 , 36505939 , 652968360 , 305039340 , 3407939770 , 3670703246
n×2
41843364
n×3
62765046
n×4
83686728
n×5
104608410
n÷2
10460841
n÷3
6973894
n÷3
5230420.5
n÷5
4184336.4
n2
437716777709124
n3
9.157771229295E+21
n4
1.9159597748806E+29
n5
4.0085101134843E+36
2 √n
4574.0225185279
3 √n
275.5490166989
4 √n
67.631520155382
5 √n
29.115169269356
1 , 2 , 3 , 6 , 227 , 454 , 681 , 1362 , 15361 , 30722 , 46083 , 92166 , 3486947 , 6973894 , 10460841 , 20921682
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921681
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921682 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921682) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011110101010010
3
Ternary
1110100221011010
4
Quaternary
1033303311102
5
Quinary
20323443212
6
Senary
2024231350
8
Octal
117636522
10
Decimal
20921682
12
Duodecimal
700b556
16
Hexadecimal
13f3d52
20
Vigesimal
6af442
36
Base36
cgf9u
md5
fed3554ac28dd4dbb60e5e07ae3697e3
sha1
315ec9282b1561149716110b402541818d0703d7
sha256
7ccd4eb05f1443f715f877862a51e0913f9d14faa1bf44477006ff0fb519a735
sha512
b13cb16abf5150463be35bb8e36646b037f4f3dd644238ab39233bfe7147d19c42cbb1e2a779065f2189d5b84b830daacc24c4f2306b97ca31ec154e3918ab47
ripemd-160
aee410094b0a0c79c688bf47e128a18ac4f0259b
Diameter
41843364
Circumference
131454804.94388
Area
1.375127813204E+15
Volume
3.8359982422945E+22
Surface area
5.5005112528159E+15
Circumference
131454804.94388
Perimeter
83686728
Area
437716777709124
Diagonal
29587726.432057
Surface area
2626300666254744
Volume
9.157771229295E+21
Space diagonal
36237416.203799
Perimeter
62765046
Area
1.8953692457938E+14
Altitude
18118708.1019
Surface area
1.8953692457938E+14
Volume
1.0792536894649E+21
Height
9862575.4773524