21431439 is an odd 8-digits composite number following 21431438
and preceding 21431440 . In scientific notation, it is written as 2.1431439 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 14287608 positive integers (up to 21431439) that are relatively prime to 21431439.
21431439 has 8 divisors, whose sum is 31750320
The reverse of 21431439 is 93413412
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred thirty-one thousand four hundred thirty-nine
Scientific notation
2.1431439 × 10^7
Engineering notation
2.1431439 × 10^6
Prime Factorization
3 × 9 × 793757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21431439
Product of the distinct prime numbers
The prime factorization of 21431439 is 3 × 9 × 793757.
Since it has a total of 3 prime factors.
5 , 10 , 53 , 45 , 824 , 889 , 7741 , 1603 , 67046 , 91055 , 463494 , 181908 , 4301357 , 2891379 , 49868144 , 49746084 , 271528381 , 75523175 , 6957116632 , 2917013269
n×2
42862878
n×3
64294317
n×4
85725756
n×5
107157195
n÷2
10715719.5
n÷3
7143813
n÷3
5357859.75
n÷5
4286287.8
n2
459306577610721
n3
9.8436009003629E+21
n4
2.1096253223647E+29
n5
4.5212306409115E+36
2 √n
4629.4102216157
3 √n
277.7690013879
4 √n
68.039769411835
5 √n
29.255684679459
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
-21431438
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 21431439 can be divided by 8 positive divisors.
The sum of these divisors (counting 21431439) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110000010010001111
3
Ternary
1111022211102000
4
Quaternary
1101300102033
5
Quinary
20441301224
6
Senary
2043203343
8
Octal
121602217
10
Decimal
21431439
12
Duodecimal
7216553
16
Hexadecimal
147048f
20
Vigesimal
6diibj
36
Base36
crclr
md5
c567c03d77c921d870719a0e6ca131df
sha1
602c2399dc51311f7785e96625c7e010f934dc56
sha256
28861c55936d8c38cb6e0fe79bf72b48fcac2245f65ab86eb62f24335ab76cb5
sha512
a63be683a254a81c7ac9c96f2820dc4940796049b80a332a63369a397ad7ec9063e96092651616cfd380a129603f72701cbf2ecf0c893b913906d18d9f8a5aa6
ripemd-160
ed5c140e40e54fce4ad2eaf58681246a37d9efc1
Diameter
42862878
Circumference
134657702.63652
Area
1.4429541699673E+15
Volume
4.1232779031267E+22
Surface area
5.7718166798692E+15
Circumference
134657702.63652
Perimeter
85725756
Area
459306577610721
Diagonal
30308631.694972
Surface area
2755839465664326
Volume
9.8436009003629E+21
Space diagonal
37120341.227313
Perimeter
64294317
Area
1.9888558216809E+14
Altitude
18560170.613657
Surface area
1.9888558216809E+14
Volume
1.1600794913234E+21
Height
10102877.231657