21305005 is an odd 8-digits composite number following 21305004
and preceding 21305006 . In scientific notation, it is written as 2.1305005 × 10^7.
The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors.
There are 16999488 positive integers (up to 21305005) that are relatively prime to 21305005.
21305005 has 8 divisors, whose sum is 25632792
The reverse of 21305005 is 50050312
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million three hundred five thousand five
Scientific notation
2.1305005 × 10^7
Engineering notation
2.1305005 × 10^6
Prime Factorization
5 × 397 × 10733
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21305005
Product of the distinct prime numbers
The prime factorization of 21305005 is 5 × 397 × 10733.
Since it has a total of 3 prime factors.
1 , 3 , 66 , 22 , 600 , 260 , 4808 , 1818 , 17279 , 16994 , 711350 , 737233 , 7956562 , 9010533 , 16607373 , 1893875 , 904204782 , 317614791 , 1140881203 , 9544320292
n×2
42610010
n×3
63915015
n×4
85220020
n×5
106525025
n÷2
10652502.5
n÷3
7101668.3333333
n÷3
5326251.25
n÷5
4261001
n2
453903238050025
n3
9.670410756172E+21
n4
2.060281495123E+29
n5
4.3894307555002E+36
2 √n
4615.7345027633
3 √n
277.22169430425
4 √n
67.939197101256
5 √n
29.221084362574
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
-21305004
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 21305005 can be divided by 8 positive divisors.
The sum of these divisors (counting 21305005) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001010001011010101101
3
Ternary
1111002101222021
4
Quaternary
1101101122231
5
Quinary
20423230010
6
Senary
2040350141
8
Octal
121213255
10
Decimal
21305005
12
Duodecimal
7175351
16
Hexadecimal
14516ad
20
Vigesimal
6d32a5
36
Base36
con1p
md5
8ca4f5723251c4b2ba1d3f38efcac19a
sha1
c3edbf741f2786eae2b2004c2b888b9fae0ae38c
sha256
c442376f205653faaa953b765c8af21de5ff6a49f45f7cb1af624302c045ae79
sha512
0bcff5cb9e4843f942a70ede6cc72f123e1154755d7e12d98769cb4a6b58ab4bdfe29a5289a606efa90c03ae6896760692cf52acd74d151e9af327d376a30109
ripemd-160
0c9a1c4935779a51ad35200447247c34f1c52911
Diameter
42610010
Circumference
133863294.38539
Area
1.4259790780986E+15
Volume
4.0507321851714E+22
Surface area
5.7039163123943E+15
Circumference
133863294.38539
Perimeter
85220020
Area
453903238050025
Diagonal
30129827.017427
Surface area
2723419428300150
Volume
9.670410756172E+21
Space diagonal
36901351.115509
Perimeter
63915015
Area
1.9654586750567E+14
Altitude
18450675.557754
Surface area
1.9654586750567E+14
Volume
1.1396688370914E+21
Height
10043275.672476