21531009 is an odd 8-digits composite number following 21531008
and preceding 21531010 . In scientific notation, it is written as 2.1531009 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13598496 positive integers (up to 21531009) that are relatively prime to 21531009.
21531009 has 8 divisors, whose sum is 30219040
The reverse of 21531009 is 90013512
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million five hundred thirty-one thousand nine
Scientific notation
2.1531009 × 10^7
Engineering notation
2.1531009 × 10^6
Prime Factorization
3 × 19 × 377737
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21531009
Product of the distinct prime numbers
The prime factorization of 21531009 is 3 × 19 × 377737.
Since it has a total of 3 prime factors.
2 , 4 , 96 , 61 , 285 , 359 , 6054 , 9136 , 8115 , 86857 , 850457 , 315055 , 7225661 , 2164745 , 82186092 , 38875173 , 500446764 , 600929470 , 3873388100 , 229169745
n×2
43062018
n×3
64593027
n×4
86124036
n×5
107655045
n÷2
10765504.5
n÷3
7177003
n÷3
5382752.25
n÷5
4306201.8
n2
463584348558081
n3
9.9814387810632E+21
n4
2.1491044822802E+29
n5
4.6272387949915E+36
2 √n
4640.1518294125
3 √n
278.19850649789
4 √n
68.11865992085
5 √n
29.282818555934
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
-21531008
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 21531009 can be divided by 8 positive divisors.
The sum of these divisors (counting 21531009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001000100110000001
3
Ternary
1111111212222210
4
Quaternary
1102020212001
5
Quinary
21002443014
6
Senary
2045252333
8
Octal
122104601
10
Decimal
21531009
12
Duodecimal
72640a9
16
Hexadecimal
1488981
20
Vigesimal
6eb7a9
36
Base36
cthfl
md5
3ba85d04961c9049322ee056277479f5
sha1
a0b576579c6b1d63ebea450aef515177b3fbf764
sha256
502e2d8443075693d87c3d7778c567dc254abad20f1945edac87d984aa4f3211
sha512
cb2704cda7a511b246bd806ae56b1f2925d087b59f873b809e2fc189a1dd3fa2b896d07f398211d8e1ac98233607dd2580c0d4e3fd16aaad85af1612cc8ecae6
ripemd-160
ac16ba260d7999a4c082c38586bb46005021389e
Diameter
43062018
Circumference
135283319.39755
Area
1.4563931837493E+15
Volume
4.1810152995792E+22
Surface area
5.8255727349971E+15
Circumference
135283319.39755
Perimeter
86124036
Area
463584348558081
Diagonal
30449444.939377
Surface area
2781506091348486
Volume
9.9814387810632E+21
Space diagonal
37292801.526223
Perimeter
64593027
Area
2.0073791132408E+14
Altitude
18646400.763111
Surface area
2.0073791132408E+14
Volume
1.176323841348E+21
Height
10149814.979792