20987582 is an even 8-digits composite number following 20987581
and preceding 20987583 . In scientific notation, it is written as 2.0987582 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 8176560 positive integers (up to 20987582) that are relatively prime to 20987582.
20987582 has 8 divisors, whose sum is 31541400
The reverse of 20987582 is 28578902
Previous prime number is 539
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million nine hundred eighty-seven thousand five hundred eighty-two
Scientific notation
2.0987582 × 10^7
Engineering notation
2.0987582 × 10^6
Prime Factorization
2 × 539 × 19469
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20987582
Product of the distinct prime numbers
The prime factorization of 20987582 is 2 × 539 × 19469.
Since it has a total of 3 prime factors.
2 , 6 , 66 , 55 , 635 , 903 , 8312 , 2716 , 98592 , 54762 , 550312 , 431776 , 8501207 , 6011695 , 29836120 , 62485132 , 740396346 , 6193084 , 3439567575 , 5474083780
n×2
41975164
n×3
62962746
n×4
83950328
n×5
104937910
n÷2
10493791
n÷3
6995860.6666667
n÷3
5246895.5
n÷5
4197516.4
n2
440478598206724
n3
9.2445806991087E+21
n4
1.9402139547816E+29
n5
4.0720399473523E+36
2 √n
4581.2205797145
3 √n
275.83802545441
4 √n
67.684714520448
5 √n
29.133487842265
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
-20987581
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 20987582 can be divided by 8 positive divisors.
The sum of these divisors (counting 20987582) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011111010111110
3
Ternary
1110111021112212
4
Quaternary
1100003322332
5
Quinary
20333100312
6
Senary
2025500422
8
Octal
120037276
10
Decimal
20987582
12
Duodecimal
7041712
16
Hexadecimal
1403ebe
20
Vigesimal
6b38j2
36
Base36
chu4e
md5
6b0237c10e2fc3de4cac78e882c63380
sha1
db72cb345ec853aaf6284eaeff7005b31be47bf9
sha256
f17cb9e0e9a387a40a385e43a1489a55114b10e24dd34f7710162d8e0302f27e
sha512
5c6d42b44b3cdc19931fac0ccecba71e0490cd1bf6095be421ae5e087df6705589168b9796192d7aaee70275a1069cbced0b1033cf6f804da04c20a89aeb08ae
ripemd-160
3884a4c306af2553b8ee7ef7ea536ea3a2faf525
Diameter
41975164
Circumference
131868866.85563
Area
1.3838043281898E+15
Volume
3.8723609079784E+22
Surface area
5.5352173127591E+15
Circumference
131868866.85563
Perimeter
83950328
Area
440478598206724
Diagonal
29680923.105817
Surface area
2642871589240344
Volume
9.2445806991087E+21
Space diagonal
36351558.352018
Perimeter
62962746
Area
1.9073282793519E+14
Altitude
18175779.176009
Surface area
1.9073282793519E+14
Volume
1.0894842835943E+21
Height
9893641.0352725