21493723 is an odd 8-digits prime number following 21493722
and preceding 21493724 . In scientific notation, it is written as 2.1493723 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 21493722 positive integers (up to 21493723) that are relatively prime to 21493723.
21493723 has 2 divisors, whose sum is 21493724
The reverse of 21493723 is 32739412
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 31 Digital Root 4
Name
twenty-one million four hundred ninety-three thousand seven hundred twenty-three
Scientific notation
2.1493723 × 10^7
Engineering notation
2.1493723 × 10^6
Prime Factorization
21493723
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21493723 Product of the distinct prime numbers
The prime factorization of 21493723 is 21493723.
Since it has a total of 1 prime factors.
8 , 10 , 62 , 31 , 182 , 211 , 6352 , 8367 , 88217 , 44588 , 812882 , 810923 , 1830894 , 6522524 , 43562019 , 92800009 , 478342775 , 428847753 , 7840429628 , 1004279030
n×2
42987446
n×3
64481169
n×4
85974892
n×5
107468615
n÷2
10746861.5
n÷3
7164574.3333333
n÷3
5373430.75
n÷5
4298744.6
n2
461980128400729
n3
9.9296729113497E+21
n4
2.1342563903715E+29
n5
4.5873115665626E+36
2 √n4636.1323320199
3 √n278.03782502077
4 √n68.089149884691
5 √n29.272669507463
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21493724 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10746862 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4636.1324398684 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999069496 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493723 can be divided by 2 positive divisors.
The sum of these divisors (counting 21493723) is 21493724, the average is 10746862.
Base
System
Value
2
Binary
1010001111111011111011011
3
Ternary
1111102222211211
4
Quaternary
1101333133123
5
Quinary
21000244343
6
Senary
2044403551
8
Octal
121773733
10
Decimal
21493723
12
Duodecimal
72465b7
16
Hexadecimal
147f7db
20
Vigesimal
6e6e63
36
Base36
csonv
md5
fcfba220ed90d2df28f0b84603db599f
sha1
8b7ec944c6aa032ba2d5dc6829bb14595e1e794d
sha256
df24bd4a902013d5dd4177ec8e3cc28bf0ada436c3e8a29ad90d232b9c306c72
sha512
9d5a2b5c5109840b5aa0f966c72179d04e389bcf71d0761fc41a7f3c136f921dbe634fa99a119b854c65be7c8fd46d57579553a4f675324262e10c639abaa422
ripemd-160
024e823e8b0938afda7677842e0b1830130bf4dc
Diameter
42987446
Circumference
135049044.55019
Area
1.4513533774882E+15
Volume
4.1593316627794E+22
Surface area
5.8054135099528E+15
Circumference
135049044.55019
Perimeter
85974892
Area
461980128400729
Diagonal
30396714.572491
Surface area
2771880770404374
Volume
9.9296729113497E+21
Space diagonal
37228220.279812
Perimeter
64481169
Area
2.0004326361931E+14
Altitude
18614110.139906
Surface area
2.0004326361931E+14
Volume
1.1702231750966E+21
Height
10132238.19083