21493770 is an even 8-digits composite number following 21493769
and preceding 21493771 . In scientific notation, it is written as 2.1493770 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 5731664 positive integers (up to 21493770) that are relatively prime to 21493770.
21493770 has 16 divisors, whose sum is 51585120
The reverse of 21493770 is 07739412
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-three thousand seven hundred seventy
Scientific notation
2.1493770 × 10^7
Engineering notation
2.1493770 × 10^6
Prime Factorization
2 × 5 × 3 × 716459
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21493770
Product of the distinct prime numbers
The prime factorization of 21493770 is 2 × 5 × 3 × 716459.
Since it has a total of 4 prime factors.
10 , 2 , 43 , 44 , 134 , 434 , 9648 , 4675 , 53091 , 99228 , 924458 , 486975 , 6700088 , 215516 , 93595622 , 48627052 , 748508315 , 805125940 , 4665109593 , 7425657731
n×2
42987540
n×3
64481310
n×4
85975080
n×5
107468850
n÷2
10746885
n÷3
7164590
n÷3
5373442.5
n÷5
4298754
n2
461982148812900
n3
9.9297380506902E+21
n4
2.1342750582178E+29
n5
4.5873617218071E+36
2 √n
4636.1374008974
3 √n
278.03802768099
4 √n
68.089187107039
5 √n
29.272682309473
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 716459 , 1432918 , 2149377 , 3582295 , 4298754 , 7164590 , 10746885 , 21493770
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21493769
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493770 can be divided by 16 positive divisors.
The sum of these divisors (counting 21493770) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111111100000001010
3
Ternary
1111102222220120
4
Quaternary
1101333200022
5
Quinary
21000300040
6
Senary
2044404110
8
Octal
121774012
10
Decimal
21493770
12
Duodecimal
7246636
16
Hexadecimal
147f80a
20
Vigesimal
6e6e8a
36
Base36
csop6
md5
ce50fd2920898cd668e484954da9e4f6
sha1
d7360a4e59db6a73878c7c5571c73f19a7ddfeab
sha256
6319015572e2bd9252d541ea9798d98e5ee8d38b91851aaa0ec8cb2863f94043
sha512
c9e3c23f774b56897dbda1b11ba3bcafa1d4d081dca0619f9182db0c58abed0e881db1e5f29b8951d2e00259341b6dfba058784d9e6f65626bc670802c66a658
ripemd-160
c37078260cc57c9587f17df2c042853c9c1c84ba
Diameter
42987540
Circumference
135049339.8599
Area
1.4513597248002E+15
Volume
4.1593589482826E+22
Surface area
5.8054388992009E+15
Circumference
135049339.8599
Perimeter
85975080
Area
461982148812900
Diagonal
30396781.040528
Surface area
2771892892877400
Volume
9.9297380506902E+21
Space diagonal
37228301.6862
Perimeter
64481310
Area
2.0004413848345E+14
Altitude
18614150.8431
Surface area
2.0004413848345E+14
Volume
1.1702308518415E+21
Height
10132260.346843