21793721 is an odd 8-digits prime number following 21793720
and preceding 21793722 . In scientific notation, it is written as 2.1793721 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21793720 positive integers (up to 21793721) that are relatively prime to 21793721.
21793721 has 2 divisors, whose sum is 21793722
The reverse of 21793721 is 12739712
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 32 Digital Root 5
Name
twenty-one million seven hundred ninety-three thousand seven hundred twenty-one
Scientific notation
2.1793721 × 10^7
Engineering notation
2.1793721 × 10^6
Prime Factorization
21793721
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21793721 Product of the distinct prime numbers
The prime factorization of 21793721 is 21793721.
Since it has a total of 1 prime factors.
8 , 1 , 48 , 67 , 642 , 535 , 8862 , 8249 , 96339 , 72442 , 447196 , 376168 , 5140380 , 3529392 , 3963636 , 56626457 , 419967482 , 748358810 , 5238348533 , 9336283567
n×2
43587442
n×3
65381163
n×4
87174884
n×5
108968605
n÷2
10896860.5
n÷3
7264573.6666667
n÷3
5448430.25
n÷5
4358744.2
n2
474966275025841
n3
1.0351282482322E+22
n4
2.2559296241192E+29
n5
4.9165100823689E+36
2 √n4668.3745565239
3 √n279.32542117105
4 √n68.325504436659
5 √n29.35393156301
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21793722 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10896861 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4668.3746636276 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999082305 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21793721 can be divided by 2 positive divisors.
The sum of these divisors (counting 21793721) is 21793722, the average is 10896861.
Base
System
Value
2
Binary
1010011001000101110111001
3
Ternary
1112000020100212
4
Quaternary
1103020232321
5
Quinary
21034344341
6
Senary
2055040505
8
Octal
123105671
10
Decimal
21793721
12
Duodecimal
7370135
16
Hexadecimal
14c8bb9
20
Vigesimal
6g4461
36
Base36
cz455
md5
58ad9f9af5399183faacf6cdfb772de8
sha1
bb427d121992f19e5bbe6caa8174ae711b0a2c25
sha256
9d9e33d1d51cdc4f6952d8cdf5354350ba917b1eeafdce56ac55208fd955c13c
sha512
d7a1b84785abad0e06b9426cda43c9d946074b65cad75f4ba88ed0db911abde0327ef97f9be56a9eeb3cba212868cab581c0038d2ac803f6d950009e6d815ddc
ripemd-160
bb30eb8580f6070090f8a2401cce9d3ed6428423
Diameter
43587442
Circumference
136933987.57597
Area
1.4921505603241E+15
Volume
4.3359350668929E+22
Surface area
5.9686022412964E+15
Circumference
136933987.57597
Perimeter
87174884
Area
474966275025841
Diagonal
30820975.812775
Surface area
2849797650155046
Volume
1.0351282482322E+22
Space diagonal
37747832.057981
Perimeter
65381163
Area
2.0566643005662E+14
Altitude
18873916.02899
Surface area
2.0566643005662E+14
Volume
1.219910339538E+21
Height
10273658.604258