21493766 is an even 8-digits composite number following 21493765
and preceding 21493767 . In scientific notation, it is written as 2.1493766 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 9211608 positive integers (up to 21493766) that are relatively prime to 21493766.
21493766 has 8 divisors, whose sum is 36846480
The reverse of 21493766 is 66739412
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety-three thousand seven hundred sixty-six
Scientific notation
2.1493766 × 10^7
Engineering notation
2.1493766 × 10^6
Prime Factorization
2 × 7 × 1535269
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21493766
Product of the distinct prime numbers
The prime factorization of 21493766 is 2 × 7 × 1535269.
Since it has a total of 3 prime factors.
10 , 2 , 28 , 90 , 814 , 909 , 7227 , 1445 , 28968 , 6149 , 998190 , 484647 , 4185304 , 8252601 , 15264593 , 57429012 , 262486243 , 928422550 , 2757331373 , 8871570426
n×2
42987532
n×3
64481298
n×4
85975064
n×5
107468830
n÷2
10746883
n÷3
7164588.6666667
n÷3
5373441.5
n÷5
4298753.2
n2
461981976862756
n3
9.9297325069055E+21
n4
2.1342734694602E+29
n5
4.5873574532586E+36
2 √n
4636.1369695038
3 √n
278.03801043333
4 √n
68.089183939182
5 √n
29.272681219941
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
-21493765
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 21493766 can be divided by 8 positive divisors.
The sum of these divisors (counting 21493766) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111100000000110
3
Ternary
1111102222220102
4
Quaternary
1101333200012
5
Quinary
21000300031
6
Senary
2044404102
8
Octal
121774006
10
Decimal
21493766
12
Duodecimal
7246632
16
Hexadecimal
147f806
20
Vigesimal
6e6e86
36
Base36
csop2
md5
672053a0d1ebdf7c93736d2916cee9de
sha1
62bb95e9871352d5ea97297094f6169ee1dcf439
sha256
1fb4b0e6a771b5b00a055710fdff4b5e367d1364e30ab257fac9cbf8360c1138
sha512
986c5e990f01ae0b7361bcc2d04b55a4127f0f6c5668c153b38438e9bfa99ef95f31f387f212527a04d3f8898a50f16cad2cd2e9111fa5629eaaa81d2f75fef1
ripemd-160
53a60e240be84ce450f9ecae0abfe368e52f9e96
Diameter
42987532
Circumference
135049314.72716
Area
1.4513591846029E+15
Volume
4.1593566261075E+22
Surface area
5.8054367384117E+15
Circumference
135049314.72716
Perimeter
85975064
Area
461981976862756
Diagonal
30396775.383674
Surface area
2771891861176536
Volume
9.9297325069055E+21
Space diagonal
37228294.757996
Perimeter
64481298
Area
2.0004406402685E+14
Altitude
18614147.378998
Surface area
2.0004406402685E+14
Volume
1.1702301985002E+21
Height
10132258.461225