21291749 is an odd 8-digits prime number following 21291748
and preceding 21291750 . In scientific notation, it is written as 2.1291749 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21291748 positive integers (up to 21291749) that are relatively prime to 21291749.
21291749 has 2 divisors, whose sum is 21291750
The reverse of 21291749 is 94719212
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million two hundred ninety-one thousand seven hundred forty-nine
Scientific notation
2.1291749 × 10^7
Engineering notation
2.1291749 × 10^6
Prime Factorization
21291749
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21291749
Product of the distinct prime numbers
The prime factorization of 21291749 is 21291749.
Since it has a total of 1 prime factors.
4 , 6 , 58 , 44 , 907 , 690 , 8375 , 7796 , 79366 , 78604 , 360027 , 788533 , 4244508 , 8575407 , 1145908 , 24278200 , 242165471 , 383942573 , 4755492648 , 6036300944
n×2
42583498
n×3
63875247
n×4
85166996
n×5
106458745
n÷2
10645874.5
n÷3
7097249.6666667
n÷3
5322937.25
n÷5
4258349.8
n2
453338575479001
n3
9.6523711611164E+21
n4
2.0551586401733E+29
n5
4.3757921921751E+36
2 √n
4614.2983215219
3 √n
277.16418648377
4 √n
67.928626671838
5 √n
29.217447178397
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21291750
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10645875
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4614.2984298808
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999060669
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21291749 can be divided by 2 positive divisors.
The sum of these divisors (counting 21291749) is 21291750, the average is 10645875.
Base
System
Value
2
Binary
1010001001110001011100101
3
Ternary
1111001201210022
4
Quaternary
1101032023211
5
Quinary
20422313444
6
Senary
2040204525
8
Octal
121161345
10
Decimal
21291749
12
Duodecimal
7169745
16
Hexadecimal
144e2e5
20
Vigesimal
6d1979
36
Base36
cocth
md5
780d99ec588200d0b976f53ddc706554
sha1
3d55719744eccd235c0eb6af952635097e99d04f
sha256
e20a3ddb653e416279ddcb88d903748ab271f5fbbe9acfbc1cc87634d6321a4b
sha512
769b99f273fd54b8f45c98503a276174cdbf6ac6dd1201e2cb5d7584dd57c38504bed9855dfbf69bd8d79c1df43900c4e6a8bbc930c9c07c75ff2a8aa1d345d5
ripemd-160
a0d421384531b40662ea5d02840d6094d369c552
Diameter
42583498
Circumference
133780004.48096
Area
1.4242051383137E+15
Volume
4.0431757772647E+22
Surface area
5.6968205532548E+15
Circumference
133780004.48096
Perimeter
85166996
Area
453338575479001
Diagonal
30111080.202444
Surface area
2720031452874006
Volume
9.6523711611164E+21
Space diagonal
36878391.050004
Perimeter
63875247
Area
1.9630136144013E+14
Altitude
18439195.525002
Surface area
1.9630136144013E+14
Volume
1.1375428504258E+21
Height
10037026.734148