20408509 is an odd 8-digits composite number following 20408508
and preceding 20408510 . In scientific notation, it is written as 2.0408509 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 17740800 positive integers (up to 20408509) that are relatively prime to 20408509.
20408509 has 8 divisors, whose sum is 20712888
The reverse of 20408509 is 90580402
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million four hundred eight thousand five hundred nine
Scientific notation
2.0408509 × 10^7
Engineering notation
2.0408509 × 10^6
Prime Factorization
341 × 97 × 617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20408509
Product of the distinct prime numbers
The prime factorization of 20408509 is 341 × 97 × 617.
Since it has a total of 3 prime factors.
9 , 7 , 99 , 3 , 470 , 925 , 1893 , 2026 , 82493 , 87527 , 872380 , 754725 , 8224472 , 2067627 , 77150189 , 48196726 , 314509618 , 584651978 , 543253797 , 4116309524
n×2
40817018
n×3
61225527
n×4
81634036
n×5
102042545
n÷2
10204254.5
n÷3
6802836.3333333
n÷3
5102127.25
n÷5
4081701.8
n2
416507239603081
n3
8.5002917480046E+21
n4
1.7347828064178E+29
n5
3.5404330517823E+36
2 √n
4517.5777801826
3 √n
273.2774264334
4 √n
67.212928668394
5 √n
28.970917904575
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
-20408508
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 20408509 can be divided by 8 positive divisors.
The sum of these divisors (counting 20408509) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110100010111101
3
Ternary
1102101212012201
4
Quaternary
1031312202331
5
Quinary
20211033014
6
Senary
2005231501
8
Octal
115664275
10
Decimal
20408509
12
Duodecimal
6a02591
16
Hexadecimal
13768bd
20
Vigesimal
67b159
36
Base36
c5fb1
md5
78562b59ff978d921e155fe4cdbf4e10
sha1
8114097f5822b8b572c9ce6097af95f1978b7920
sha256
e9a7c5e86cc44f51634275c90ec1599b52a7ffacc0c7f20625ae25cdab2bccf2
sha512
597185bf564e53c11cd4dd8ee506869c4a1a6a8fcbe0e853d1bee59475cda2f41cbbfa5be98f1087d50085ee3f85e8c729c4db2918e3190c04be08a7cf998f01
ripemd-160
bdb91f90123974ba3b0849e20f206aed23f01c3e
Diameter
40817018
Circumference
128230443.89024
Area
1.308496084104E+15
Volume
3.5605938811868E+22
Surface area
5.233984336416E+15
Circumference
128230443.89024
Perimeter
81634036
Area
416507239603081
Diagonal
28861990.215613
Surface area
2499043437618486
Volume
8.5002917480046E+21
Space diagonal
35348574.494727
Perimeter
61225527
Area
1.803529251782E+14
Altitude
17674287.247363
Surface area
1.803529251782E+14
Volume
1.001768989513E+21
Height
9620663.4052045