21242709 is an odd 8-digits composite number following 21242708
and preceding 21242710 . In scientific notation, it is written as 2.1242709 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 14014080 positive integers (up to 21242709) that are relatively prime to 21242709.
21242709 has 8 divisors, whose sum is 22259328
The reverse of 21242709 is 90724212
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million two hundred forty-two thousand seven hundred nine
Scientific notation
2.1242709 × 10^7
Engineering notation
2.1242709 × 10^6
Prime Factorization
27 × 97 × 8111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21242709
Product of the distinct prime numbers
The prime factorization of 21242709 is 27 × 97 × 8111.
Since it has a total of 3 prime factors.
10 , 10 , 24 , 64 , 755 , 416 , 1667 , 1048 , 16115 , 93475 , 264168 , 602130 , 7839579 , 4965134 , 80001996 , 73786906 , 606748238 , 747641679 , 6482566701 , 4832287257
n×2
42485418
n×3
63728127
n×4
84970836
n×5
106213545
n÷2
10621354.5
n÷3
7080903
n÷3
5310677.25
n÷5
4248541.8
n2
451252685658681
n3
9.5858294869158E+21
n4
2.0362898631417E+29
n5
4.3256313002369E+36
2 √n
4608.9813408171
3 √n
276.95123105848
4 √n
67.889478866884
5 √n
29.203975805132
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
-21242708
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 21242709 can be divided by 8 positive divisors.
The sum of these divisors (counting 21242709) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000010001101010101
3
Ternary
1110222020112000
4
Quaternary
1101002031111
5
Quinary
20414231314
6
Senary
2035145513
8
Octal
121021525
10
Decimal
21242709
12
Duodecimal
7145299
16
Hexadecimal
1442355
20
Vigesimal
6cf6f9
36
Base36
cnaz9
md5
1f2a7d4294a07af17d6c1a79f6b56530
sha1
aeab8c254a12ee68dee6feb9ff905d795203dc39
sha256
91836d52336810d1bf9cb0a0447e14fa9661eb59955136cb79aacb37690c2331
sha512
be144608678d208eeb7f7380aa48f33c78e5e6b5f766a5ed2fd735f3d6edb212053b78214a289ef6a068ce8b80b88a59b8cd7f9796d25990c0559f9ff4dd2345
ripemd-160
d5697904bf85ea55f0e2512726f224533d462693
Diameter
42485418
Circumference
133471877.07349
Area
1.417652122178E+15
Volume
4.0153028659546E+22
Surface area
5.6706084887119E+15
Circumference
133471877.07349
Perimeter
84970836
Area
451252685658681
Diagonal
30041727.169345
Surface area
2707516113952086
Volume
9.5858294869158E+21
Space diagonal
36793451.278401
Perimeter
63728127
Area
1.9539814465319E+14
Altitude
18396725.6392
Surface area
1.9539814465319E+14
Volume
1.129700838916E+21
Height
10013909.056448