20521531 is an odd 8-digits composite number following 20521530
and preceding 20521532 . In scientific notation, it is written as 2.0521531 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 19588800 positive integers (up to 20521531) that are relatively prime to 20521531.
20521531 has 4 divisors, whose sum is 20532064
The reverse of 20521531 is 13512502
Previous prime number is 2581
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million five hundred twenty-one thousand five hundred thirty-one
Scientific notation
2.0521531 × 10^7
Engineering notation
2.0521531 × 10^6
Prime Factorization
2581 × 7951
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20521531
Product of the distinct prime numbers
The prime factorization of 20521531 is 2581 × 7951.
Since it has a total of 2 prime factors.
10 , 6 , 5 , 8 , 806 , 624 , 9728 , 5618 , 22896 , 64421 , 319038 , 144243 , 785573 , 9959883 , 2927820 , 82591472 , 497879905 , 811182989 , 4651191811 , 1396330295
n×2
41043062
n×3
61564593
n×4
82086124
n×5
102607655
n÷2
10260765.5
n÷3
6840510.3333333
n÷3
5130382.75
n÷5
4104306.2
n2
421133234583961
n3
8.642298728645E+21
n4
1.7735320127115E+29
n5
3.6395592178351E+36
2 √n
4530.0696462637
3 √n
273.78096672966
4 √n
67.305792070696
5 √n
29.002935155516
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
-20521530
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 20521531 can be divided by 4 positive divisors.
The sum of these divisors (counting 20521531) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110010010001000111011
3
Ternary
1102121121020201
4
Quaternary
1032102020323
5
Quinary
20223142111
6
Senary
2011503031
8
Octal
116221073
10
Decimal
20521531
12
Duodecimal
6a57a77
16
Hexadecimal
139223b
20
Vigesimal
6853gb
36
Base36
c7uij
md5
0e91f2bb298a38d2f277251ee2efcc27
sha1
a7078bb755a0809f7df0cf1701864a6d0eeb4c1c
sha256
8f3a748bc8ce25ddee14d6fd3b5a515545bcd305eda1cd81bf47c7c5089926e7
sha512
603ce31c24f9710fff14f610762539f6784bf44575d5506c7d4b5ade67280ef545a94c4406c1edd004fe870d73cd7febec74ed8903edad728ff57975044c252b
ripemd-160
177da8ea9cfab3b7c3c37d5ac22f6579abbea248
Diameter
41043062
Circumference
128940582.06003
Area
1.3230290759515E+15
Volume
3.6200776261386E+22
Surface area
5.2921163038059E+15
Circumference
128940582.06003
Perimeter
82086124
Area
421133234583961
Diagonal
29021827.46086
Surface area
2526799407503766
Volume
8.642298728645E+21
Space diagonal
35544334.3411
Perimeter
61564593
Area
1.8235603976381E+14
Altitude
17772167.17055
Surface area
1.8235603976381E+14
Volume
1.0185046726775E+21
Height
9673942.4869533