21493923 is an odd 8-digits composite number following 21493922
and preceding 21493924 . In scientific notation, it is written as 2.1493923 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13026600 positive integers (up to 21493923) that are relatively prime to 21493923.
21493923 has 4 divisors, whose sum is 22145288
The reverse of 21493923 is 32939412
Previous prime number is 33
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-three thousand nine hundred twenty-three
Scientific notation
2.1493923 × 10^7
Engineering notation
2.1493923 × 10^6
Prime Factorization
33 × 651331
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21493923
Product of the distinct prime numbers
The prime factorization of 21493923 is 33 × 651331.
Since it has a total of 2 prime factors.
8 , 8 , 8 , 56 , 32 , 184 , 9134 , 8477 , 42430 , 76338 , 231586 , 720517 , 8243598 , 5673087 , 50586357 , 20899302 , 647128000 , 600580208 , 9390378113 , 516726373
n×2
42987846
n×3
64481769
n×4
85975692
n×5
107469615
n÷2
10746961.5
n÷3
7164641
n÷3
5373480.75
n÷5
4298784.6
n2
461988725929929
n3
9.929950102006E+21
n4
2.1343358288636E+29
n5
4.5875249961735E+36
2 √n
4636.1539016732
3 √n
278.03868740266
4 √n
68.089308277242
5 √n
29.272723983946
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21493922
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493923 can be divided by 4 positive divisors.
The sum of these divisors (counting 21493923) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111100010100011
3
Ternary
1111110000010020
4
Quaternary
1101333202203
5
Quinary
21000301143
6
Senary
2044404523
8
Octal
121774243
10
Decimal
21493923
12
Duodecimal
7246743
16
Hexadecimal
147f8a3
20
Vigesimal
6e6eg3
36
Base36
csotf
md5
8d99b4621d6752ad89d7ed8475cf6f42
sha1
db438f2d47785a3693b6fcc502ac5056e4aeeab9
sha256
db9669ea551ba0ecac9632647b8797b2c37416af002b02ee61b8b3a3f8ee712b
sha512
9b38f5390ab2c1b4ec28e43e7efc53fa0fbf6835f9757380f0bf15aa42e76e70879c9a2e0d89a4ff27dd8b7280592f1f165b6863a1a3c4f96db21f8ffc801970
ripemd-160
c9ad109ddddd14f3701b13d1b71d7e908e16c071
Diameter
42987846
Circumference
135050301.18725
Area
1.4513803874228E+15
Volume
4.15944777213E+22
Surface area
5.8055215496911E+15
Circumference
135050301.18725
Perimeter
85975692
Area
461988725929929
Diagonal
30396997.415203
Surface area
2771932355579574
Volume
9.929950102006E+21
Space diagonal
37228566.689973
Perimeter
64481769
Area
2.0004698645866E+14
Altitude
18614283.344987
Surface area
2.0004698645866E+14
Volume
1.1702558423287E+21
Height
10132332.471734