20451105 is an odd 8-digits composite number following 20451104
and preceding 20451106 . In scientific notation, it is written as 2.0451105 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 10874880 positive integers (up to 20451105) that are relatively prime to 20451105.
20451105 has 16 divisors, whose sum is 27349200
The reverse of 20451105 is 50115402
Previous prime number is 641
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million four hundred fifty-one thousand one hundred five
Scientific notation
2.0451105 × 10^7
Engineering notation
2.0451105 × 10^6
Prime Factorization
9 × 5 × 641 × 709
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20451105
Product of the distinct prime numbers
The prime factorization of 20451105 is 9 × 5 × 641 × 709.
Since it has a total of 4 prime factors.
9 , 10 , 27 , 76 , 608 , 293 , 9444 , 3249 , 93838 , 9631 , 900667 , 306731 , 1441670 , 2726233 , 17349666 , 11347716 , 970436457 , 491412735 , 8012985848 , 2384657300
n×2
40902210
n×3
61353315
n×4
81804420
n×5
102255525
n÷2
10225552.5
n÷3
6817035
n÷3
5112776.25
n÷5
4090221
n2
418247695721025
n3
8.5536275411987E+21
n4
1.7493113497595E+29
n5
3.5775350091623E+36
2 √n
4522.2897961099
3 √n
273.46741967027
4 √n
67.247972431219
5 √n
28.983001259055
1 , 5 , 9 , 45 , 641 , 709 , 3205 , 3545 , 5769 , 6381 , 28845 , 31905 , 454469 , 2272345 , 4090221 , 20451105
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20451104
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20451105 can be divided by 16 positive divisors.
The sum of these divisors (counting 20451105) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000000111100100001
3
Ternary
1102111000122100
4
Quaternary
1032000330201
5
Quinary
20213413410
6
Senary
2010201013
8
Octal
116007441
10
Decimal
20451105
12
Duodecimal
6a23169
16
Hexadecimal
1380f21
20
Vigesimal
67g7f5
36
Base36
c6c69
md5
84367997f667ef7b50abc8d6b9c409c9
sha1
8247838c087ab00e7a8804ce9894ea56d6952290
sha256
0ac0e343a8a96405e0ae942a1c7ce6d397a4e01b46dd86418ed1bc5977b31f08
sha512
d34c62e561c02189c7d1a1d9660b595ba6c0c3afd6dccb2c5345300eaa7cb635a3481dc5e230056bdbd221eb0cbca089a1b570d7708eb7b3bc76e71efdaeee53
ripemd-160
8b59cd0559d8e945c471fef1e586db11a4b6d5cc
Diameter
40902210
Circumference
128498082.45159
Area
1.313963888258E+15
Volume
3.5829351259964E+22
Surface area
5.2558555530321E+15
Circumference
128498082.45159
Perimeter
81804420
Area
418247695721025
Diagonal
28922230.056516
Surface area
2509486174326150
Volume
8.5536275411987E+21
Space diagonal
35422352.930926
Perimeter
61353315
Area
1.8110656478436E+14
Altitude
17711176.465463
Surface area
1.8110656478436E+14
Volume
1.0080546730209E+21
Height
9640743.3521721