20512105 is an odd 8-digits composite number following 20512104
and preceding 20512106 . In scientific notation, it is written as 2.0512105 × 10^7.
The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors.
There are 16240128 positive integers (up to 20512105) that are relatively prime to 20512105.
20512105 has 8 divisors, whose sum is 24868872
The reverse of 20512105 is 50121502
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million five hundred twelve thousand one hundred five
Scientific notation
2.0512105 × 10^7
Engineering notation
2.0512105 × 10^6
Prime Factorization
5 × 97 × 42293
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512105
Product of the distinct prime numbers
The prime factorization of 20512105 is 5 × 97 × 42293.
Since it has a total of 3 prime factors.
9 , 6 , 3 , 3 , 673 , 368 , 7943 , 1953 , 82988 , 19087 , 843358 , 499546 , 2961963 , 6138518 , 48576097 , 26486381 , 983751169 , 172482244 , 7254335311 , 8995757872
n×2
41024210
n×3
61536315
n×4
82048420
n×5
102560525
n÷2
10256052.5
n÷3
6837368.3333333
n÷3
5128026.25
n÷5
4102421
n2
420746451531025
n3
8.6303953921818E+21
n4
1.7702757647595E+29
n5
3.6312082365702E+36
2 √n
4529.029145413
3 √n
273.73904239481
4 √n
67.298061973678
5 √n
29.000270325988
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
-20512104
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 20512105 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512105) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111110101101001
3
Ternary
1102121010022121
4
Quaternary
1032033311221
5
Quinary
20222341410
6
Senary
2011351241
8
Octal
116176551
10
Decimal
20512105
12
Duodecimal
6a52521
16
Hexadecimal
138fd69
20
Vigesimal
684055
36
Base36
c7n8p
md5
65d1164fb42294a8a354be83c0d86643
sha1
766c191785b8a097ae3471c64e466deaf0de1a12
sha256
5a2d476eda20c46badc9e7371be3e03fab454f860525095ad32561b159841d54
sha512
c7842b4c646131f1d665fde44ac080b432bc244b147f7b777bbd014c369c9f99bc82d18b379f4ee8cca30febfcc56f2693e22a84597c2730bad6fae83443b205
ripemd-160
74a1f90bb42cfaa3f21b18fb327d2f53c29b2faf
Diameter
41024210
Circumference
128881356.75532
Area
1.3218139611538E+15
Volume
3.6150915682205E+22
Surface area
5.2872558446154E+15
Circumference
128881356.75532
Perimeter
82048420
Area
420746451531025
Diagonal
29008497.083821
Surface area
2524478709186150
Volume
8.6303953921818E+21
Space diagonal
35528008.030188
Perimeter
61536315
Area
1.8218855778901E+14
Altitude
17764004.015094
Surface area
1.8218855778901E+14
Volume
1.0171018510221E+21
Height
9669499.0279403