21493767 is an odd 8-digits composite number following 21493766
and preceding 21493768 . In scientific notation, it is written as 2.1493767 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 13975104 positive integers (up to 21493767) that are relatively prime to 21493767.
21493767 has 16 divisors, whose sum is 29376000
The reverse of 21493767 is 76739412
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety-three thousand seven hundred sixty-seven
Scientific notation
2.1493767 × 10^7
Engineering notation
2.1493767 × 10^6
Prime Factorization
3 × 79 × 89 × 1019
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21493767
Product of the distinct prime numbers
The prime factorization of 21493767 is 3 × 79 × 89 × 1019.
Since it has a total of 4 prime factors.
3 , 1 , 71 , 81 , 937 , 285 , 149 , 8006 , 88943 , 22245 , 371900 , 328396 , 3064679 , 7870492 , 21681621 , 5793869 , 846888388 , 362545347 , 1043573816 , 4416896618
n×2
42987534
n×3
64481301
n×4
85975068
n×5
107468835
n÷2
10746883.5
n÷3
7164589
n÷3
5373441.75
n÷5
4298753.4
n2
461982019850289
n3
9.9297338928515E+21
n4
2.1342738666495E+29
n5
4.5873585203954E+36
2 √n
4636.1370773522
3 √n
278.03801474524
4 √n
68.089184731147
5 √n
29.272681492324
1 , 3 , 79 , 89 , 237 , 267 , 1019 , 3057 , 7031 , 21093 , 80501 , 90691 , 241503 , 272073 , 7164589 , 21493767
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
-21493766
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 21493767 can be divided by 16 positive divisors.
The sum of these divisors (counting 21493767) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111111100000000111
3
Ternary
1111102222220110
4
Quaternary
1101333200013
5
Quinary
21000300032
6
Senary
2044404103
8
Octal
121774007
10
Decimal
21493767
12
Duodecimal
7246633
16
Hexadecimal
147f807
20
Vigesimal
6e6e87
36
Base36
csop3
md5
854d1043f6433bdc5cf461fc3e76dc2e
sha1
808f848513b545d6379c764f6395627973e877f5
sha256
4e29705c1c06d1dd8becbedae224e7b1df6b5edb6f21ee8091baf0db8686659f
sha512
72807fe9c637ffebb30fac2a50f4de599b2c08d1c1465ddb3f8f45d7817e862e4fd2cf025158ea2b011ebbdea762c0d48d3a19f04a017aebd26e9d47b4bec1cd
ripemd-160
dbd01c2c68c2701035b06fd969654b400c45a1ca
Diameter
42987534
Circumference
135049321.01034
Area
1.4513593196522E+15
Volume
4.1593572066512E+22
Surface area
5.805437278609E+15
Circumference
135049321.01034
Perimeter
85975068
Area
461982019850289
Diagonal
30396776.797887
Surface area
2771892119101734
Volume
9.9297338928515E+21
Space diagonal
37228296.490047
Perimeter
64481301
Area
2.00044082641E+14
Altitude
18614148.245024
Surface area
2.00044082641E+14
Volume
1.1702303618355E+21
Height
10132258.932629