20745249 is an odd 8-digits composite number following 20745248
and preceding 20745250 . In scientific notation, it is written as 2.0745249 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 11854416 positive integers (up to 20745249) that are relatively prime to 20745249.
20745249 has 4 divisors, whose sum is 21733140
The reverse of 20745249 is 94254702
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million seven hundred forty-five thousand two hundred forty-nine
Scientific notation
2.0745249 × 10^7
Engineering notation
2.0745249 × 10^6
Prime Factorization
21 × 987869
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20745249
Product of the distinct prime numbers
The prime factorization of 20745249 is 21 × 987869.
Since it has a total of 2 prime factors.
8 , 4 , 40 , 36 , 948 , 578 , 4799 , 1258 , 30586 , 61996 , 332780 , 972765 , 5214032 , 3958394 , 38397545 , 25278377 , 685776399 , 840682041 , 5757132275 , 5761868246
n×2
41490498
n×3
62235747
n×4
82980996
n×5
103726245
n÷2
10372624.5
n÷3
6915083
n÷3
5186312.25
n÷5
4149049.8
n2
430365356072001
n3
8.9280364726873E+21
n4
1.8521433970698E+29
n5
3.8423175955919E+36
2 √n
4554.6952697189
3 √n
274.7722588312
4 √n
67.488482496786
5 √n
29.065897010912
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
-20745248
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 20745249 can be divided by 4 positive divisors.
The sum of these divisors (counting 20745249) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111001000110000100001
3
Ternary
1110000222010120
4
Quaternary
1033020300201
5
Quinary
20302321444
6
Senary
2020350453
8
Octal
117106041
10
Decimal
20745249
12
Duodecimal
6b45429
16
Hexadecimal
13c8c21
20
Vigesimal
69d329
36
Base36
ccn4x
md5
1d3bea20bc5f2a63aabd42d209133bfb
sha1
4623e7096edc75231f6d2202d15f95525a50b6fa
sha256
28427c631a9ebff09511f3f17349e713f388d4fde01122433c753e6c71b52019
sha512
a0dfe551638cdb1643861c1e24234a8c137c214409f03c8142a8e284a096d2f0a8fdb4fc802ba2a45b73dc28ebee1db74e75314f2dc51723c3633dcfe588fb51
ripemd-160
851aa28ac53286fe24b7a19b11fe465411b15f87
Diameter
41490498
Circumference
130346243.71058
Area
1.3520326409954E+15
Volume
3.7397671724768E+22
Surface area
5.4081305639814E+15
Circumference
130346243.71058
Perimeter
82980996
Area
430365356072001
Diagonal
29338212.490607
Surface area
2582192136432006
Volume
8.9280364726873E+21
Space diagonal
35931825.283667
Perimeter
62235747
Area
1.8635366563354E+14
Altitude
17965912.641834
Surface area
1.8635366563354E+14
Volume
1.052179188753E+21
Height
9779404.1635356