20921663 is an odd 8-digits composite number following 20921662
and preceding 20921664 . In scientific notation, it is written as 2.0921663 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 17817696 positive integers (up to 20921663) that are relatively prime to 20921663.
20921663 has 8 divisors, whose sum is 24064032
The reverse of 20921663 is 36612902
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred twenty-one thousand six hundred sixty-three
Scientific notation
2.0921663 × 10^7
Engineering notation
2.0921663 × 10^6
Prime Factorization
7 × 157 × 19037
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921663
Product of the distinct prime numbers
The prime factorization of 20921663 is 7 × 157 × 19037.
Since it has a total of 3 prime factors.
7 , 4 , 39 , 84 , 13 , 207 , 6045 , 1366 , 23455 , 60483 , 167524 , 112479 , 3098482 , 1201317 , 60135088 , 51764622 , 170297191 , 780463086 , 5305952311 , 6968494052
n×2
41843326
n×3
62764989
n×4
83686652
n×5
104608315
n÷2
10460831.5
n÷3
6973887.6666667
n÷3
5230415.75
n÷5
4184332.6
n2
437715982685569
n3
9.1577462794613E+21
n4
1.9159528149839E+29
n5
4.0084919118995E+36
2 √n
4574.0204415809
3 √n
275.54893328571
4 √n
67.631504800506
5 √n
29.115163981173
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
-20921662
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 20921663 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921663) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110100111111
3
Ternary
1110100221010102
4
Quaternary
1033303310333
5
Quinary
20323443123
6
Senary
2024231315
8
Octal
117636477
10
Decimal
20921663
12
Duodecimal
700b53b
16
Hexadecimal
13f3d3f
20
Vigesimal
6af433
36
Base36
cgf9b
md5
cce6e09f8cc2c149a187e43dbab637d4
sha1
46adf41ad86188cc7095191503ae3e1167b4f09e
sha256
aa18e80dfb657f6a967bc6f39f7c68fb5c7cee7988a38c30b74e116c86ef280e
sha512
8d8bef57cf300eddb16eb955f717031558de0e4610228dfe3932572994beb2aee5ad9bd614975e8d1d45c5d34323bdd89d721c3794c0239f04926d41633ae000
ripemd-160
cd07d4a0d1baf884a1efbd9b22292577f80c8a87
Diameter
41843326
Circumference
131454685.56336
Area
1.3751253155638E+15
Volume
3.8359877913327E+22
Surface area
5.5005012622553E+15
Circumference
131454685.56336
Perimeter
83686652
Area
437715982685569
Diagonal
29587699.561999
Surface area
2626295896113414
Volume
9.1577462794613E+21
Space diagonal
36237383.294834
Perimeter
62764989
Area
1.8953658032409E+14
Altitude
18118691.647417
Surface area
1.8953658032409E+14
Volume
1.0792507490988E+21
Height
9862566.5206665