20520145 is an odd 8-digits composite number following 20520144
and preceding 20520146 . In scientific notation, it is written as 2.0520145 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 16306800 positive integers (up to 20520145) that are relatively prime to 20520145.
20520145 has 8 divisors, whose sum is 24788160
The reverse of 20520145 is 54102502
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million five hundred twenty thousand one hundred forty-five
Scientific notation
2.0520145 × 10^7
Engineering notation
2.0520145 × 10^6
Prime Factorization
5 × 151 × 27179
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20520145
Product of the distinct prime numbers
The prime factorization of 20520145 is 5 × 151 × 27179.
Since it has a total of 3 prime factors.
1 , 4 , 26 , 33 , 327 , 511 , 716 , 185 , 91676 , 883 , 467710 , 205597 , 6939848 , 5110348 , 57877858 , 26555985 , 663405918 , 162771666 , 4338389412 , 292127153
n×2
41040290
n×3
61560435
n×4
82080580
n×5
102600725
n÷2
10260072.5
n÷3
6840048.3333333
n÷3
5130036.25
n÷5
4104029
n2
421076350821025
n3
8.6405477749183E+21
n4
1.7730529322075E+29
n5
3.6383303261573E+36
2 √n
4529.9166659002
3 √n
273.77480297636
4 √n
67.304655603458
5 √n
29.002543380125
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
-20520144
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 20520145 can be divided by 8 positive divisors.
The sum of these divisors (counting 20520145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110010001110011010001
3
Ternary
1102121112100101
4
Quaternary
1032101303101
5
Quinary
20223121040
6
Senary
2011452401
8
Octal
116216321
10
Decimal
20520145
12
Duodecimal
6a57101
16
Hexadecimal
1391cd1
20
Vigesimal
685075
36
Base36
c7tg1
md5
644fbf4abe633602916d2032839b415d
sha1
bd9e08c700cf6eac9c17216929fce02326cf74cc
sha256
46b5c0a62eab146ae0db381ccf7ec0d9345634871661fb34b858329090184576
sha512
b1b41f5b730eada21901695709d9ef14935aacd7f584eaf12bb48f1340c43efd710850cdc8ac85163b781c0f9b8bdc2d547169d127825def1db6ada44276d806
ripemd-160
3e78142511026809390f276788569af577989d33
Diameter
41040290
Circumference
128931873.56519
Area
1.3228503703397E+15
Volume
3.6193441883567E+22
Surface area
5.2914014813589E+15
Circumference
128931873.56519
Perimeter
82080580
Area
421076350821025
Diagonal
29019867.360862
Surface area
2526458104926150
Volume
8.6405477749183E+21
Space diagonal
35541933.71868
Perimeter
61560435
Area
1.8233140837193E+14
Altitude
17770966.85934
Surface area
1.8233140837193E+14
Volume
1.0182983208018E+21
Height
9673289.1202875