21087589 is an odd 8-digits composite number following 21087588
and preceding 21087590 . In scientific notation, it is written as 2.1087589 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 21072960 positive integers (up to 21087589) that are relatively prime to 21087589.
21087589 has 4 divisors, whose sum is 21102220
The reverse of 21087589 is 98578012
Previous prime number is 13009
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million eighty-seven thousand five hundred eighty-nine
Scientific notation
2.1087589 × 10^7
Engineering notation
2.1087589 × 10^6
Prime Factorization
13009 × 1621
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21087589
Product of the distinct prime numbers
The prime factorization of 21087589 is 13009 × 1621.
Since it has a total of 2 prime factors.
8 , 10 , 60 , 60 , 93 , 359 , 4390 , 7090 , 40514 , 87660 , 11440 , 563581 , 1299323 , 5611346 , 94358026 , 89857362 , 377414131 , 656531936 , 2419778211 , 9809504536
n×2
42175178
n×3
63262767
n×4
84350356
n×5
105437945
n÷2
10543794.5
n÷3
7029196.3333333
n÷3
5271897.25
n÷5
4217517.8
n2
444686409832921
n3
9.3773642444422E+21
n4
1.9774600309009E+29
n5
4.1699864395566E+36
2 √n
4592.1224940108
3 √n
276.27545925348
4 √n
67.765201202467
5 √n
29.161199612458
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
-21087588
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 21087589 can be divided by 4 positive divisors.
The sum of these divisors (counting 21087589) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100010101100101
3
Ternary
1110200100201211
4
Quaternary
1100130111211
5
Quinary
20344300324
6
Senary
2031551421
8
Octal
120342545
10
Decimal
21087589
12
Duodecimal
708b571
16
Hexadecimal
141c565
20
Vigesimal
6bfij9
36
Base36
cjzad
md5
3b11122c87926351fa603fcc7508c23e
sha1
771732a972e689ebff749196fab8f992764c8718
sha256
7f136ceb302a5fa697e57b3d95f184b9c10780b222bd0ebb4e64e30e505017c6
sha512
5e0cf3edba7ea4f51c6271942478d2810fa9268dae09e6adfa3c562397a67076b01a2dfe29a57bce501df08984f65f191d0e74120837565f30f6a5e632e7369a
ripemd-160
d009899ac12625616cc32755283663a982432891
Diameter
42175178
Circumference
132497229.36864
Area
1.3970235582823E+15
Volume
3.9279811493834E+22
Surface area
5.5880942331293E+15
Circumference
132497229.36864
Perimeter
84350356
Area
444686409832921
Diagonal
29822354.36155
Surface area
2668118458997526
Volume
9.3773642444422E+21
Space diagonal
36524775.557131
Perimeter
63262767
Area
1.925548638165E+14
Altitude
18262387.778565
Surface area
1.925548638165E+14
Volume
1.1051329744836E+21
Height
9940784.7871832