21009436 is an even 8-digits composite number following 21009435
and preceding 21009437 . In scientific notation, it is written as 2.1009436 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 24 positive divisors.
There are 9003456 positive integers (up to 21009436) that are relatively prime to 21009436.
21009436 has 24 divisors, whose sum is 42879200
The reverse of 21009436 is 63490012
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million nine thousand four hundred thirty-six
Scientific notation
2.1009436 × 10^7
Engineering notation
2.1009436 × 10^6
Prime Factorization
2 × 2 × 49 × 7 × 15313
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10504718
Product of the distinct prime numbers
The prime factorization of 21009436 is 2 × 2 × 49 × 7 × 15313.
Since it has a total of 5 prime factors.
1 , 10 , 10 , 30 , 445 , 285 , 886 , 4832 , 44446 , 84447 , 382829 , 510267 , 755962 , 5022008 , 13177050 , 1766776 , 474306242 , 953335463 , 7097380662 , 1171464005
n×2
42018872
n×3
63028308
n×4
84037744
n×5
105047180
n÷2
10504718
n÷3
7003145.3333333
n÷3
5252359
n÷5
4201887.2
n2
441396401038096
n3
9.2734894382402E+21
n4
1.9483078284938E+29
n5
4.093284863104E+36
2 √n
4583.6051313349
3 √n
275.93373400368
4 √n
67.70232737015
5 √n
29.139552554456
1 , 2 , 4 , 7 , 14 , 28 , 49 , 98 , 196 , 343 , 686 , 1372 , 15313 , 30626 , 61252 , 107191 , 214382 , 428764 , 750337 , 1500674 , 3001348 , 5252359 , 10504718 , 21009436
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21009435
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21009436 can be divided by 24 positive divisors.
The sum of these divisors (counting 21009436) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000001001010000011100
3
Ternary
1110112101112021
4
Quaternary
1100021100130
5
Quinary
20334300221
6
Senary
2030145524
8
Octal
120112034
10
Decimal
21009436
12
Duodecimal
70522a4
16
Hexadecimal
140941c
20
Vigesimal
6b63bg
36
Base36
ciazg
md5
92069e2ccf216f998551f7773e4c329a
sha1
4bf5b4bb614f6dc0a8c5e085427c948dea353a27
sha256
6cb751680334c576c7561714c0f605ad43984e534dc00ec3f179dc472b74ee87
sha512
f805d03ceb7bf2fbfd40abac9d77501fa7cc16d812ecdfdf84806974eb0daa18439dcae890402d373d8c0b2e8050d417e210eaea80d4b047fd3e0f587164aa0c
ripemd-160
bad38e8cc17fdec85759aff06796a71a91c4839b
Diameter
42018872
Circumference
132006179.58733
Area
1.3866876908223E+15
Volume
3.8844701723091E+22
Surface area
5.546750763289E+15
Circumference
132006179.58733
Perimeter
84037744
Area
441396401038096
Diagonal
29711829.32901
Surface area
2648378406228576
Volume
9.2734894382402E+21
Space diagonal
36389410.590367
Perimeter
63028308
Area
1.9113024821901E+14
Altitude
18194705.295183
Surface area
1.9113024821901E+14
Volume
1.0928912111736E+21
Height
9903943.1096699