20921841 is an odd 8-digits composite number following 20921840
and preceding 20921842 . In scientific notation, it is written as 2.0921841 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13718160 positive integers (up to 20921841) that are relatively prime to 20921841.
20921841 has 8 divisors, whose sum is 22054144
The reverse of 20921841 is 14812902
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million nine hundred twenty-one thousand eight hundred forty-one
Scientific notation
2.0921841 × 10^7
Engineering notation
2.0921841 × 10^6
Prime Factorization
27 × 61 × 12703
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921841
Product of the distinct prime numbers
The prime factorization of 20921841 is 27 × 61 × 12703.
Since it has a total of 3 prime factors.
5 , 6 , 30 , 67 , 1000 , 668 , 2491 , 6006 , 58706 , 59360 , 634885 , 68240 , 925248 , 2577503 , 66615216 , 66086133 , 364455764 , 141648638 , 7659552596 , 7596640082
n×2
41843682
n×3
62765523
n×4
83687364
n×5
104609205
n÷2
10460920.5
n÷3
6973947
n÷3
5230460.25
n÷5
4184368.2
n2
437723430829281
n3
9.1579800217847E+21
n4
1.9160180189696E+29
n5
4.0086624346016E+36
2 √n
4574.0398992575
3 √n
275.54971473365
4 √n
67.631648651039
5 √n
29.115213522947
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
-20921840
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 20921841 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921841) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110111110001
3
Ternary
1110100221101000
4
Quaternary
1033303313301
5
Quinary
20323444331
6
Senary
2024232213
8
Octal
117636761
10
Decimal
20921841
12
Duodecimal
700b669
16
Hexadecimal
13f3df1
20
Vigesimal
6af4c1
36
Base36
cgfe9
md5
87220eb24223ce400a3dd671803ccdf2
sha1
77f0fc0fd414fe961cb8a8a508cbdc8a629ef373
sha256
ccc332d9c991b2961ba6765665e016eab3354a0e525560e43bd7386e555512ec
sha512
c57bc8134893fb29c208e97622f49eb498da8700676c04955e0ad8bbff78a4e912dab29e7c0335e11754e1c755525f503a8d6fa45d06157bef2d09f84fbdb619
ripemd-160
0d293af7dbbef9ff39b3669ec447b1aabee32a53
Diameter
41843682
Circumference
131455803.97035
Area
1.3751487145974E+15
Volume
3.8360857010881E+22
Surface area
5.5005948583896E+15
Circumference
131455803.97035
Perimeter
83687364
Area
437723430829281
Diagonal
29587951.292013
Surface area
2626340584975686
Volume
9.1579800217847E+21
Space diagonal
36237691.599878
Perimeter
62765523
Area
1.8953980546492E+14
Altitude
18118845.799939
Surface area
1.8953980546492E+14
Volume
1.0792782958958E+21
Height
9862650.4306712