20531489 is an odd 8-digits composite number following 20531488
and preceding 20531490 . In scientific notation, it is written as 2.0531489 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18664980 positive integers (up to 20531489) that are relatively prime to 20531489.
20531489 has 4 divisors, whose sum is 22398000
The reverse of 20531489 is 98413502
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million five hundred thirty-one thousand four hundred eighty-nine
Scientific notation
2.0531489 × 10^7
Engineering notation
2.0531489 × 10^6
Prime Factorization
11 × 1866499
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20531489
Product of the distinct prime numbers
The prime factorization of 20531489 is 11 × 1866499.
Since it has a total of 2 prime factors.
1 , 1 , 98 , 28 , 513 , 602 , 3355 , 627 , 28711 , 42123 , 903938 , 981053 , 825972 , 9252964 , 55612148 , 4575758 , 549058244 , 359466476 , 1945004218 , 8857055936
n×2
41062978
n×3
61594467
n×4
82125956
n×5
102657445
n÷2
10265744.5
n÷3
6843829.6666667
n÷3
5132872.25
n÷5
4106297.8
n2
421542040557121
n3
8.6548857687361E+21
n4
1.7769769195706E+29
n5
3.6483982077418E+36
2 √n
4531.1686130622
3 √n
273.82524331584
4 √n
67.313955559469
5 √n
29.005749323589
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
-20531488
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 20531489 can be divided by 4 positive divisors.
The sum of these divisors (counting 20531489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110010100100100100001
3
Ternary
1102122002220112
4
Quaternary
1032110210201
5
Quinary
20224001424
6
Senary
2012021105
8
Octal
116244441
10
Decimal
20531489
12
Duodecimal
6a61795
16
Hexadecimal
1394921
20
Vigesimal
6868e9
36
Base36
c8275
md5
24583844a5de4d2dd92936b0ceda38bf
sha1
51b3be8d428f5561d9552afdffdb05445c1da097
sha256
08593906f3bc7a7f1bfe552d4c835564322fcc496431487db086577c99d96b82
sha512
dac5988b5534c0d104d034573aa8a39924a039429945d4ffe6ea68b37a90069404cda4fb6b156e72536a537b0b32e20013a65305ccea4c1dd354479d664e61a2
ripemd-160
9313ed917acff1b1bbd5825d391459d724fa666b
Diameter
41062978
Circumference
129003150.01932
Area
1.3243133777935E+15
Volume
3.6253500731627E+22
Surface area
5.297253511174E+15
Circumference
129003150.01932
Perimeter
82125956
Area
421542040557121
Diagonal
29035910.199514
Surface area
2529252243342726
Volume
8.6548857687361E+21
Space diagonal
35561582.103042
Perimeter
61594467
Area
1.825330579428E+14
Altitude
17780791.051521
Surface area
1.825330579428E+14
Volume
1.019988069578E+21
Height
9678636.7331713