20081749 is an odd 8-digits composite number following 20081748
and preceding 20081750 . In scientific notation, it is written as 2.0081749 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19752480 positive integers (up to 20081749) that are relatively prime to 20081749.
20081749 has 4 divisors, whose sum is 20411020
The reverse of 20081749 is 94718002
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eighty-one thousand seven hundred forty-nine
Scientific notation
2.0081749 × 10^7
Engineering notation
2.0081749 × 10^6
Prime Factorization
61 × 329209
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081749
Product of the distinct prime numbers
The prime factorization of 20081749 is 61 × 329209.
Since it has a total of 2 prime factors.
10 , 2 , 6 , 20 , 685 , 231 , 5628 , 3565 , 67827 , 53527 , 686592 , 742632 , 5020335 , 6066153 , 60563361 , 97113916 , 536581876 , 131524615 , 5167912905 , 3684745888
n×2
40163498
n×3
60245247
n×4
80326996
n×5
100408745
n÷2
10040874.5
n÷3
6693916.3333333
n÷3
5020437.25
n÷5
4016349.8
n2
403276642899001
n3
8.0985003202604E+21
n4
1.6263205070789E+29
n5
3.2659360216711E+36
2 √n
4481.266450458
3 √n
271.811093783
4 √n
66.942262065589
5 √n
28.877547501706
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
-20081748
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 20081749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110110001010101
3
Ternary
1101210020222111
4
Quaternary
1030212301111
5
Quinary
20120103444
6
Senary
1554231021
8
Octal
114466125
10
Decimal
20081749
12
Duodecimal
6885471
16
Hexadecimal
1326c55
20
Vigesimal
65a479
36
Base36
byf6d
md5
6cd01ea5853ccfe244fe8e17dfe81596
sha1
ae90aad0cd1e3bd57bbaab3e232ec5920d31fab5
sha256
7e5f2bc414c30125803f5725648ab460aa795d38b3f381aa444be49bd4e82c56
sha512
39da06eb45516a025acafc67e0d15224ecf48ca3aa28ad8e207c1f582fa606e58b7f6e99d5778b0f4ba3804933e49db0ad90e7e3bf95b0f4199fe1cdea0d9b93
ripemd-160
0150e405026d5c6e26c649ddcca654542c72c5a1
Diameter
40163498
Circumference
126177350.25927
Area
1.2669309386959E+15
Volume
3.3922918814966E+22
Surface area
5.0677237547834E+15
Circumference
126177350.25927
Perimeter
80326996
Area
403276642899001
Diagonal
28399881.791972
Surface area
2419659857394006
Volume
8.0985003202604E+21
Space diagonal
34782609.572845
Perimeter
60245247
Area
1.7462390875172E+14
Altitude
17391304.786423
Surface area
1.7462390875172E+14
Volume
9.5441741564959E+20
Height
9466627.2639908