21531005 is an odd 8-digits composite number following 21531004
and preceding 21531006 . In scientific notation, it is written as 2.1531005 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 17185600 positive integers (up to 21531005) that are relatively prime to 21531005.
21531005 has 8 divisors, whose sum is 25896024
The reverse of 21531005 is 50013512
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million five hundred thirty-one thousand five
Scientific notation
2.1531005 × 10^7
Engineering notation
2.1531005 × 10^6
Prime Factorization
5 × 461 × 9341
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21531005
Product of the distinct prime numbers
The prime factorization of 21531005 is 5 × 461 × 9341.
Since it has a total of 3 prime factors.
7 , 4 , 98 , 10 , 872 , 652 , 1893 , 5024 , 35874 , 11127 , 672291 , 123115 , 9214165 , 5112557 , 70294361 , 30254921 , 64670172 , 197018119 , 6510496604 , 2002214660
n×2
43062010
n×3
64593015
n×4
86124020
n×5
107655025
n÷2
10765502.5
n÷3
7177001.6666667
n÷3
5382751.25
n÷5
4306201
n2
463584176310025
n3
9.981433218052E+21
n4
2.1491028852504E+29
n5
4.6272344967842E+36
2 √n
4640.1513983921
3 √n
278.19848927012
4 √n
68.118656757104
5 √n
29.28281746791
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
-21531004
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 21531005 can be divided by 8 positive divisors.
The sum of these divisors (counting 21531005) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001000100101111101
3
Ternary
1111111212222122
4
Quaternary
1102020211331
5
Quinary
21002443010
6
Senary
2045252325
8
Octal
122104575
10
Decimal
21531005
12
Duodecimal
72640a5
16
Hexadecimal
148897d
20
Vigesimal
6eb7a5
36
Base36
cthfh
md5
ba720f8d72221b748c304a5cdf6188c1
sha1
df7fc07657ebab92bb6f010f707adb4b5040c4cf
sha256
cfdedc08c00dd9d5dcfbd9e0311eae054b412c8a729e7edbbba7d410760630a6
sha512
ebe51769ee7e4eda494d382a354f9a7f7267b4524339ab636508f718cca5f02924c153bf3721a94d3c51930ac0b251713c75446f279683414b274dd299a845c2
ripemd-160
c062a202fe3246026a4e5a3469567c2feb3ebee4
Diameter
43062010
Circumference
135283294.26481
Area
1.456392642616E+15
Volume
4.1810129693506E+22
Surface area
5.8255705704642E+15
Circumference
135283294.26481
Perimeter
86124020
Area
463584176310025
Diagonal
30449439.282523
Surface area
2781505057860150
Volume
9.981433218052E+21
Space diagonal
37292794.59802
Perimeter
64593015
Area
2.0073783673848E+14
Altitude
18646397.29901
Surface area
2.0073783673848E+14
Volume
1.1763231857409E+21
Height
10149813.094174