21308081 is an odd 8-digits prime number following 21308080
and preceding 21308082 . In scientific notation, it is written as 2.1308081 × 10^7.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 21308080 positive integers (up to 21308081) that are relatively prime to 21308081.
21308081 has 2 divisors, whose sum is 21308082
The reverse of 21308081 is 18080312
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million three hundred eight thousand eighty-one
Scientific notation
2.1308081 × 10^7
Engineering notation
2.1308081 × 10^6
Prime Factorization
21308081
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21308081
Product of the distinct prime numbers
The prime factorization of 21308081 is 21308081.
Since it has a total of 1 prime factors.
3 , 3 , 86 , 14 , 459 , 934 , 8740 , 8971 , 61092 , 33408 , 763325 , 89860 , 9939670 , 28615 , 44163221 , 84293177 , 430748157 , 754459324 , 6651021557 , 3370696679
n×2
42616162
n×3
63924243
n×4
85232324
n×5
106540405
n÷2
10654040.5
n÷3
7102693.6666667
n÷3
5327020.25
n÷5
4261616.2
n2
454034315902561
n3
9.6745999800314E+21
n4
2.0614716001711E+29
n5
4.3926003835645E+36
2 √n
4616.0676988103
3 √n
277.2350353462
4 √n
67.941649220565
5 √n
29.221928097321
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21308082
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10654041
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4616.0678071276
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999061389
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21308081 can be divided by 2 positive divisors.
The sum of these divisors (counting 21308081) is 21308082, the average is 10654041.
Base
System
Value
2
Binary
1010001010010001010110001
3
Ternary
1111002120012012
4
Quaternary
1101102022301
5
Quinary
20423324311
6
Senary
2040412305
8
Octal
121221261
10
Decimal
21308081
12
Duodecimal
7177095
16
Hexadecimal
14522b1
20
Vigesimal
6d3a41
36
Base36
copf5
md5
d3eb5cf0c6294d66c21a82a9678ee81e
sha1
1e3bd55b870d5b43d2266530b31718f212fd01b9
sha256
f3bdd77930c5e1b94fcf41072ad526c5840d2a4f5558461336a77ef369f7e6a3
sha512
cfcab6e80bcca8e1b541242a6f6f830a5399c688f1166887ae29cd07082e9bbc04fa307286ef1c3a4dc42ed8d3dfdc16541be279160043b10a8d7bf7c412362b
ripemd-160
d1f75f0339d0099f369cbfd24588b107c5a13cb2
Diameter
42616162
Circumference
133882621.46339
Area
1.4263908713172E+15
Volume
4.0524869631582E+22
Surface area
5.7055634852686E+15
Circumference
133882621.46339
Perimeter
85232324
Area
454034315902561
Diagonal
30134177.138344
Surface area
2724205895415366
Volume
9.6745999800314E+21
Space diagonal
36906678.903793
Perimeter
63924243
Area
1.9660262588075E+14
Altitude
18453339.451897
Surface area
1.9660262588075E+14
Volume
1.1401625418579E+21
Height
10044725.712781