21243724 is an even 8-digits composite number following 21243723
and preceding 21243725 . In scientific notation, it is written as 2.1243724 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 10621860 positive integers (up to 21243724) that are relatively prime to 21243724.
21243724 has 6 divisors, whose sum is 37176524
The reverse of 21243724 is 42734212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million two hundred forty-three thousand seven hundred twenty-four
Scientific notation
2.1243724 × 10^7
Engineering notation
2.1243724 × 10^6
Prime Factorization
2 × 2 × 5310931
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10621862
Product of the distinct prime numbers
The prime factorization of 21243724 is 2 × 2 × 5310931.
Since it has a total of 3 prime factors.
3 , 2 , 20 , 42 , 793 , 838 , 2757 , 1764 , 62418 , 64556 , 804525 , 700077 , 830152 , 910407 , 64820957 , 14464925 , 657663943 , 55079732 , 8326191720 , 2895768952
n×2
42487448
n×3
63731172
n×4
84974896
n×5
106218620
n÷2
10621862
n÷3
7081241.3333333
n÷3
5310931
n÷5
4248744.8
n2
451295809388176
n3
9.587203616999E+21
n4
2.0366790757133E+29
n5
4.3266648161028E+36
2 √n
4609.0914506006
3 √n
276.9556419997
4 √n
67.890289810846
5 √n
29.204254879415
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21243723
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21243724 can be divided by 6 positive divisors.
The sum of these divisors (counting 21243724) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001000010011101001100
3
Ternary
1110222021220121
4
Quaternary
1101002131030
5
Quinary
20414244344
6
Senary
2035154324
8
Octal
121023514
10
Decimal
21243724
12
Duodecimal
71459a4
16
Hexadecimal
144274c
20
Vigesimal
6cf964
36
Base36
cnbrg
md5
63c3d3d1daaa835b97b50787dfdf1266
sha1
e38adc132e46c416a506436a50804be313bd7491
sha256
f6f31b8c2881373553a860a6e4edb5109e54f3d6a920a8eda891aee2b8d8065c
sha512
f8d6c400357eff0b76a11d169a5703536178cca0d77bc4e9e0063a50e01c8f3facbe87a38fbdcb5e35ef0d5a813f168969c3ff4f3a0a69587c74c92f3a29cb0a
ripemd-160
999cecf2fb6f9e6dc59cbfe0ea43864d5a432500
Diameter
42487448
Circumference
133478254.50658
Area
1.4177875993698E+15
Volume
4.0158784602178E+22
Surface area
5.671150397479E+15
Circumference
133478254.50658
Perimeter
84974896
Area
451295809388176
Diagonal
30043162.596111
Surface area
2707774856329056
Volume
9.587203616999E+21
Space diagonal
36795209.30997
Perimeter
63731172
Area
1.9541681777581E+14
Altitude
18397604.654985
Surface area
1.9541681777581E+14
Volume
1.1298627816994E+21
Height
10014387.532037