20408729 is an odd 8-digits composite number following 20408728
and preceding 20408730 . In scientific notation, it is written as 2.0408729 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18372240 positive integers (up to 20408729) that are relatively prime to 20408729.
20408729 has 4 divisors, whose sum is 20427876
The reverse of 20408729 is 92780402
Previous prime number is 1133
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million four hundred eight thousand seven hundred twenty-nine
Scientific notation
2.0408729 × 10^7
Engineering notation
2.0408729 × 10^6
Prime Factorization
1133 × 18013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20408729
Product of the distinct prime numbers
The prime factorization of 20408729 is 1133 × 18013.
Since it has a total of 2 prime factors.
3 , 6 , 9 , 75 , 760 , 919 , 9808 , 684 , 33681 , 6784 , 180753 , 117968 , 5911624 , 6325998 , 60239894 , 24033014 , 238502609 , 36356136 , 215961286 , 2299943335
n×2
40817458
n×3
61226187
n×4
81634916
n×5
102043645
n÷2
10204364.5
n÷3
6802909.6666667
n÷3
5102182.25
n÷5
4081745.8
n2
416516219395441
n3
8.5005666457461E+21
n4
1.7348576101947E+29
n5
3.5406238820052E+36
2 √n
4517.6021294488
3 √n
273.27840839012
4 √n
67.213109803436
5 √n
28.970980364547
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
-20408728
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 20408729 can be divided by 4 positive divisors.
The sum of these divisors (counting 20408729) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110110100110011001
3
Ternary
1102101212111212
4
Quaternary
1031312212121
5
Quinary
20211034404
6
Senary
2005232505
8
Octal
115664631
10
Decimal
20408729
12
Duodecimal
6a02735
16
Hexadecimal
1376999
20
Vigesimal
67b1g9
36
Base36
c5fh5
md5
4847e5d5b6f26f9bc074d55d1fecd301
sha1
505ba2cc428f89c9eb0eb9681d83994f6c0512e4
sha256
4a46a5d079680448860296d0e48636d86658d98cbf2644d93ca6cd7336411980
sha512
bd381025df0e56ff140269ec7e425d8643a5c492c69abc0b969e8923c2f6433d081303c95a4e71aedf47f5f4b1d5426ba17021d7af672e0ecfb25efc54b0652a
ripemd-160
2a6b8cea06d0f6224ac0491d99bfef47c73df0ab
Diameter
40817458
Circumference
128231826.19101
Area
1.3085242949537E+15
Volume
3.5607090300835E+22
Surface area
5.2340971798148E+15
Circumference
128231826.19101
Perimeter
81634916
Area
416516219395441
Diagonal
28862301.342597
Surface area
2499097316372646
Volume
8.5005666457461E+21
Space diagonal
35348955.545904
Perimeter
61226187
Area
1.8035681354235E+14
Altitude
17674477.772952
Surface area
1.8035681354235E+14
Volume
1.0018013865225E+21
Height
9620767.114199