21308521 is an odd 8-digits composite number following 21308520
and preceding 21308522 . In scientific notation, it is written as 2.1308521 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 19211472 positive integers (up to 21308521) that are relatively prime to 21308521.
21308521 has 8 divisors, whose sum is 23481920
The reverse of 21308521 is 12580312
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million three hundred eight thousand five hundred twenty-one
Scientific notation
2.1308521 × 10^7
Engineering notation
2.1308521 × 10^6
Prime Factorization
13 × 43 × 38119
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21308521
Product of the distinct prime numbers
The prime factorization of 21308521 is 13 × 43 × 38119.
Since it has a total of 3 prime factors.
4 , 9 , 23 , 24 , 716 , 221 , 6510 , 6885 , 73610 , 4147 , 568015 , 357488 , 3820906 , 1966422 , 9053880 , 35816315 , 202670506 , 213351481 , 7119589411 , 2294810406
n×2
42617042
n×3
63925563
n×4
85234084
n×5
106542605
n÷2
10654260.5
n÷3
7102840.3333333
n÷3
5327130.25
n÷5
4261704.2
n2
454053067207441
n3
9.6751993177042E+21
n4
2.0616418784048E+29
n5
4.3930539260469E+36
2 √n
4616.1153581773
3 √n
277.23694358273
4 √n
67.941999957149
5 √n
29.22204877963
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
-21308520
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 21308521 can be divided by 8 positive divisors.
The sum of these divisors (counting 21308521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001010010010001101001
3
Ternary
1111002120210111
4
Quaternary
1101102101221
5
Quinary
20423333041
6
Senary
2040414321
8
Octal
121222151
10
Decimal
21308521
12
Duodecimal
71773a1
16
Hexadecimal
1452469
20
Vigesimal
6d3b61
36
Base36
coprd
md5
0ba68f3442cdea0a4bfd9a1617e85e21
sha1
a76318d018b50d9ba9dffbcd1aa98a3e7bb3a005
sha256
f539d73b12f94c38fb5f0c647041860000e3888932520eacc4eebaaef230f2bd
sha512
1d8911e5c2ce3bc3d11e5eb33da46bf7a76cf620d67bb9272315c84d695254ec60704364ac8d297e69981603557b61b4cea21724fc9d407395602fe34fda290f
ripemd-160
68e89f65456bf12f0dde4fc8df683ffa9f80da80
Diameter
42617042
Circumference
133885386.06493
Area
1.4264497802788E+15
Volume
4.0527380131355E+22
Surface area
5.7057991211152E+15
Circumference
133885386.06493
Perimeter
85234084
Area
454053067207441
Diagonal
30134799.392312
Surface area
2724318403244646
Volume
9.6751993177042E+21
Space diagonal
36907441.006148
Perimeter
63925563
Area
1.9661074543394E+14
Altitude
18453720.503074
Surface area
1.9661074543394E+14
Volume
1.14023317448E+21
Height
10044933.130771