21431438 is an even 8-digits composite number following 21431437
and preceding 21431439 . In scientific notation, it is written as 2.1431438 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 8960640 positive integers (up to 21431438) that are relatively prime to 21431438.
21431438 has 8 divisors, whose sum is 32260032
The reverse of 21431438 is 83413412
Previous prime number is 287
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million four hundred thirty-one thousand four hundred thirty-eight
Scientific notation
2.1431438 × 10^7
Engineering notation
2.1431438 × 10^6
Prime Factorization
2 × 287 × 37337
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21431438
Product of the distinct prime numbers
The prime factorization of 21431438 is 2 × 287 × 37337.
Since it has a total of 3 prime factors.
4 , 7 , 26 , 6 , 573 , 141 , 7533 , 5373 , 4016 , 80021 , 958136 , 533739 , 2869741 , 1393878 , 8449209 , 56127686 , 904146192 , 626784760 , 6425070985 , 9166007722
n×2
42862876
n×3
64294314
n×4
85725752
n×5
107157190
n÷2
10715719
n÷3
7143812.6666667
n÷3
5357859.5
n÷5
4286287.6
n2
459306534747844
n3
9.8435995224433E+21
n4
2.1096249286207E+29
n5
4.5212295860989E+36
2 √n
4629.4101136106
3 √n
277.76899706762
4 √n
68.039768618144
5 √n
29.255684406442
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
-21431437
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 21431438 can be divided by 8 positive divisors.
The sum of these divisors (counting 21431438) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110000010010001110
3
Ternary
1111022211101222
4
Quaternary
1101300102032
5
Quinary
20441301223
6
Senary
2043203342
8
Octal
121602216
10
Decimal
21431438
12
Duodecimal
7216552
16
Hexadecimal
147048e
20
Vigesimal
6diibi
36
Base36
crclq
md5
d11f7ac0916649f75e5564b1ac853df6
sha1
e2d750b637f1c2866bd10d1123e00e80f35845ad
sha256
65bd6012d275f4bbd7fc8be8b334c08b35b4fafba0596319b74c5d051fc5f190
sha512
12265b82e385925816a3b75872131bf6affd1a75f81ca9c546908fdbf771fc008e9eccaad980ef0db77f93a8e2123e8e04eaaf3d6546b4742df8eba31090f43b
ripemd-160
e69c749e2269287c3a1a1605ce7b0d9e0b1d896a
Diameter
42862876
Circumference
134657696.35333
Area
1.4429540353096E+15
Volume
4.123277325945E+22
Surface area
5.7718161412384E+15
Circumference
134657696.35333
Perimeter
85725752
Area
459306534747844
Diagonal
30308630.280758
Surface area
2755839208487064
Volume
9.8435995224433E+21
Space diagonal
37120339.495262
Perimeter
64294314
Area
1.9888556360792E+14
Altitude
18560169.747631
Surface area
1.9888556360792E+14
Volume
1.160079328934E+21
Height
10102876.760253