21432457 is an odd 8-digits composite number following 21432456
and preceding 21432458 . In scientific notation, it is written as 2.1432457 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21321216 positive integers (up to 21432457) that are relatively prime to 21432457.
21432457 has 4 divisors, whose sum is 21543700
The reverse of 21432457 is 75423412
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred thirty-two thousand four hundred fifty-seven
Scientific notation
2.1432457 × 10^7
Engineering notation
2.1432457 × 10^6
Prime Factorization
193 × 111049
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21432457
Product of the distinct prime numbers
The prime factorization of 21432457 is 193 × 111049.
Since it has a total of 2 prime factors.
4 , 7 , 42 , 54 , 386 , 172 , 7979 , 2944 , 87880 , 56488 , 131694 , 431948 , 6737831 , 8562822 , 31816555 , 70149948 , 349281529 , 532432269 , 5660046714 , 3287105162
n×2
42864914
n×3
64297371
n×4
85729828
n×5
107162285
n÷2
10716228.5
n÷3
7144152.3333333
n÷3
5358114.25
n÷5
4286491.4
n2
459350213056849
n3
9.8450036892818E+21
n4
2.1100261823537E+29
n5
4.522304542217E+36
2 √n
4629.5201695208
3 √n
277.77339935617
4 √n
68.040577374981
5 √n
29.255962604998
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
-21432456
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 21432457 can be divided by 4 positive divisors.
The sum of these divisors (counting 21432457) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000100010001001
3
Ternary
1111022212210201
4
Quaternary
1101300202021
5
Quinary
20441314312
6
Senary
2043212201
8
Octal
121604211
10
Decimal
21432457
12
Duodecimal
7217061
16
Hexadecimal
1470889
20
Vigesimal
6dj12h
36
Base36
crde1
md5
a0ba28a2b77c58b291b6018e7039da55
sha1
10e72478af4af524f3e6553d78b4fc38ba356e0f
sha256
8cf461bab4ef275d7aeb441346323cc17962ec8fd49ed9e2606fcfe659d5818d
sha512
a21e3a96be21b8bed497b3998c29e1e4bfc430c9afb3f6dcde975c04057b011002912d665b15d1e2c2fb131ac7126872818ee7fe9bcc32998d4d22aa600c4add
ripemd-160
81dabea72aa301e09e7bef744f8ea1ca7a63ebde
Diameter
42864914
Circumference
134664098.91916
Area
1.4430912547643E+15
Volume
4.1238655019749E+22
Surface area
5.7723650190572E+15
Circumference
134664098.91916
Perimeter
85729828
Area
459350213056849
Diagonal
30310071.364378
Surface area
2756101278341094
Volume
9.8450036892818E+21
Space diagonal
37122104.455035
Perimeter
64297371
Area
1.9890447687051E+14
Altitude
18561052.227518
Surface area
1.9890447687051E+14
Volume
1.160244811583E+21
Height
10103357.121459