21542709 is an odd 8-digits composite number following 21542708
and preceding 21542710 . In scientific notation, it is written as 2.1542709 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14361804 positive integers (up to 21542709) that are relatively prime to 21542709.
21542709 has 4 divisors, whose sum is 28723616
The reverse of 21542709 is 90724512
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million five hundred forty-two thousand seven hundred nine
Scientific notation
2.1542709 × 10^7
Engineering notation
2.1542709 × 10^6
Prime Factorization
3 × 7180903
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21542709
Product of the distinct prime numbers
The prime factorization of 21542709 is 3 × 7180903.
Since it has a total of 2 prime factors.
6 , 10 , 67 , 38 , 301 , 344 , 7734 , 6589 , 79779 , 22289 , 238913 , 673175 , 2414727 , 3912173 , 41913370 , 56120226 , 111739595 , 810626588 , 3773195126 , 5740984848
n×2
43085418
n×3
64628127
n×4
86170836
n×5
107713545
n÷2
10771354.5
n÷3
7180903
n÷3
5385677.25
n÷5
4308541.8
n2
464088311058681
n3
9.9977194354386E+21
n4
2.153779604613E+29
n5
4.6398247272313E+36
2 √n
4641.412392796
3 √n
278.24888860998
4 √n
68.127911994982
5 √n
29.286000334657
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
-21542708
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 21542709 can be divided by 4 positive divisors.
The sum of these divisors (counting 21542709) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011011100110101
3
Ternary
1111112111001010
4
Quaternary
1102023130311
5
Quinary
21003331314
6
Senary
2045422433
8
Octal
122133465
10
Decimal
21542709
12
Duodecimal
726aa19
16
Hexadecimal
148b735
20
Vigesimal
6ecgf9
36
Base36
ctqgl
md5
7b5a76415cc4379e4f1df891e6f0adf8
sha1
fccd478c0aef47d0eb349b86e78817bea539d52a
sha256
e82f201c1aa5a16aadd4930208d001f97f27580852f17a2d046560fe5282e77a
sha512
9a57b5f22133c1b20a718c845ffde72196425c1ba0431c2d62b35dcf7eeec35fc39d05f0914ea13586842b6702a6a950ad8c0617d1374823ad5cae54c09c4f2f
ripemd-160
bd5eefcc667df3989e3d4a7b1630391d1f2f67d2
Diameter
43085418
Circumference
135356832.66565
Area
1.4579764286388E+15
Volume
4.1878349241368E+22
Surface area
5.8319057145554E+15
Circumference
135356832.66565
Perimeter
86170836
Area
464088311058681
Diagonal
30465991.238057
Surface area
2784529866352086
Volume
9.9977194354386E+21
Space diagonal
37313066.520671
Perimeter
64628127
Area
2.0095613348812E+14
Altitude
18656533.260336
Surface area
2.0095613348812E+14
Volume
1.1782425348665E+21
Height
10155330.412686