20921873 is an odd 8-digits composite number following 20921872
and preceding 20921874 . In scientific notation, it is written as 2.0921873 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17684352 positive integers (up to 20921873) that are relatively prime to 20921873.
20921873 has 8 divisors, whose sum is 21645000
The reverse of 20921873 is 37812902
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand eight hundred seventy-three
Scientific notation
2.0921873 × 10^7
Engineering notation
2.0921873 × 10^6
Prime Factorization
49 × 73 × 5849
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921873
Product of the distinct prime numbers
The prime factorization of 20921873 is 49 × 73 × 5849.
Since it has a total of 3 prime factors.
8 , 8 , 16 , 56 , 747 , 481 , 5035 , 5861 , 13645 , 26830 , 735702 , 968482 , 297431 , 1978019 , 60809460 , 20281277 , 294951817 , 401816999 , 8809237126 , 420837328
n×2
41843746
n×3
62765619
n×4
83687492
n×5
104609365
n÷2
10460936.5
n÷3
6973957.6666667
n÷3
5230468.25
n÷5
4184374.6
n2
437724769828129
n3
9.1580220432983E+21
n4
1.9160297412109E+29
n5
4.0086930909837E+36
2 √n
4574.0433972581
3 √n
275.5498552182
4 √n
67.631674511711
5 √n
29.115222429298
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
-20921872
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 20921873 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921873) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011111000010001
3
Ternary
1110100221102012
4
Quaternary
1033303320101
5
Quinary
20323444443
6
Senary
2024232305
8
Octal
117637021
10
Decimal
20921873
12
Duodecimal
700b695
16
Hexadecimal
13f3e11
20
Vigesimal
6af4dd
36
Base36
cgff5
md5
bffebc201b3a8e136f3e905b6b975359
sha1
ea49e0c79dc3af32b4b0be0c2706eab419526d5b
sha256
4cd2c1850b53b3cf94e2aa32944b0f25e7019a36cd9d96de2bee1010ed595daa
sha512
c6f54e67d236e38a4488b91aac2f3a10014dd223320c3e292977f65f64b429dc4744b702ff8421a7d6f0dfccb59b2007a7121a80c06b724aa3ea67dde90e867a
ripemd-160
40d68a285c6532e2fab6128ba1e1f46ad23af2f5
Diameter
41843746
Circumference
131456005.03228
Area
1.3751529211863E+15
Volume
3.8361033030186E+22
Surface area
5.5006116847453E+15
Circumference
131456005.03228
Perimeter
83687492
Area
437724769828129
Diagonal
29587996.546847
Surface area
2626348618968774
Volume
9.1580220432983E+21
Space diagonal
36237747.025503
Perimeter
62765619
Area
1.8954038526843E+14
Altitude
18118873.512752
Surface area
1.8954038526843E+14
Volume
1.0792832481787E+21
Height
9862665.5156158