21493711 is an odd 8-digits composite number following 21493710
and preceding 21493712 . In scientific notation, it is written as 2.1493711 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20934048 positive integers (up to 21493711) that are relatively prime to 21493711.
21493711 has 8 divisors, whose sum is 22057920
The reverse of 21493711 is 11739412
Previous prime number is 1997
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety-three thousand seven hundred eleven
Scientific notation
2.1493711 × 10^7
Engineering notation
2.1493711 × 10^6
Prime Factorization
47 × 1997 × 229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21493711
Product of the distinct prime numbers
The prime factorization of 21493711 is 47 × 1997 × 229.
Since it has a total of 3 prime factors.
6 , 3 , 6 , 18 , 237 , 382 , 6867 , 5830 , 51226 , 8701 , 499314 , 497841 , 9199246 , 9423003 , 86803536 , 47353592 , 444457478 , 187609068 , 7832295612 , 6778894922
n×2
42987422
n×3
64481133
n×4
85974844
n×5
107468555
n÷2
10746855.5
n÷3
7164570.3333333
n÷3
5373427.75
n÷5
4298742.2
n2
461979612551521
n3
9.9296562800744E+21
n4
2.1342516241325E+29
n5
4.5872987610385E+36
2 √n
4636.1310378375
3 √n
278.03777327768
4 √n
68.089140381102
5 √n
29.272666238861
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
-21493710
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 21493711 can be divided by 8 positive divisors.
The sum of these divisors (counting 21493711) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111011111001111
3
Ternary
1111102222211101
4
Quaternary
1101333133033
5
Quinary
21000244321
6
Senary
2044403531
8
Octal
121773717
10
Decimal
21493711
12
Duodecimal
72465a7
16
Hexadecimal
147f7cf
20
Vigesimal
6e6e5b
36
Base36
csonj
md5
27980b900a622b3fa30bf4e4ed9dbf56
sha1
ede17bb96d8172edc2ef3a58aec5d3635662f2ca
sha256
0b6ba1ee10ef21eb1b6df3be4297be87640e5da3c14f1e7dcec489ecc0399e3d
sha512
a6764860e9609dde8de6a747a5362c2c3dadc305cbd738e433e2255f16d8c7197505b43324e8623c2734c6121b1be8841eb33b125802a8e9432a447d5aca3745
ripemd-160
ee458f00666937ae4169440060bdb9c57c518d1f
Diameter
42987422
Circumference
135048969.15196
Area
1.4513517569001E+15
Volume
4.1593246962871E+22
Surface area
5.8054070276005E+15
Circumference
135048969.15196
Perimeter
85974844
Area
461979612551521
Diagonal
30396697.601928
Surface area
2771877675309126
Volume
9.9296562800744E+21
Space diagonal
37228199.495202
Perimeter
64481133
Area
2.0004304025005E+14
Altitude
18614099.747601
Surface area
2.0004304025005E+14
Volume
1.170221215082E+21
Height
10132232.533976