21308811 is an odd 8-digits composite number following 21308810
and preceding 21308812 . In scientific notation, it is written as 2.1308811 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13747560 positive integers (up to 21308811) that are relatively prime to 21308811.
21308811 has 8 divisors, whose sum is 29328384
The reverse of 21308811 is 11880312
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million three hundred eight thousand eight hundred eleven
Scientific notation
2.1308811 × 10^7
Engineering notation
2.1308811 × 10^6
Prime Factorization
3 × 31 × 229127
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21308811
Product of the distinct prime numbers
The prime factorization of 21308811 is 3 × 31 × 229127.
Since it has a total of 3 prime factors.
3 , 1 , 5 , 28 , 514 , 156 , 8245 , 2631 , 53169 , 5664 , 851583 , 960817 , 3606775 , 6042103 , 83105718 , 34488808 , 139980716 , 193428910 , 8001197735 , 3410408795
n×2
42617622
n×3
63926433
n×4
85235244
n×5
106544055
n÷2
10654405.5
n÷3
7102937
n÷3
5327202.75
n÷5
4261762.2
n2
454065426233721
n3
9.6755943492488E+21
n4
2.0617541130081E+29
n5
4.3933528722562E+36
2 √n
4616.1467697637
3 √n
277.23820126972
4 √n
67.942231121473
5 √n
29.222128319154
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
-21308810
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 21308811 can be divided by 8 positive divisors.
The sum of these divisors (counting 21308811) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001010010010110001011
3
Ternary
1111002121012020
4
Quaternary
1101102112023
5
Quinary
20423340221
6
Senary
2040415523
8
Octal
121222613
10
Decimal
21308811
12
Duodecimal
71775a3
16
Hexadecimal
145258b
20
Vigesimal
6d3c0b
36
Base36
copzf
md5
e7f9e0df0e4ddeeef34c9c147305fc84
sha1
32d9264f8f525564ac4bc20e6c4a5374276977b0
sha256
7b9221fa4164f94119ad15df255ad91724016040f7b667f7a3d4dd9330e49a15
sha512
60ed24126b599cb3da1e800961d0cd042bab34ad0a6d1f4ef8146cf7133a7855d160b2cba32bf220a7a3b8d85334bc5971f83fc2b1c6a590850302bed4343665
ripemd-160
aaec5e5bb0c6625f77e994a7c72113e660f7693b
Diameter
42617622
Circumference
133887208.18867
Area
1.426488607305E+15
Volume
4.052903483562E+22
Surface area
5.7059544292199E+15
Circumference
133887208.18867
Perimeter
85235244
Area
454065426233721
Diagonal
30135209.514245
Surface area
2724392557402326
Volume
9.6755943492488E+21
Space diagonal
36907943.300883
Perimeter
63926433
Area
1.9661609704931E+14
Altitude
18453971.650441
Surface area
1.9661609704931E+14
Volume
1.140279729394E+21
Height
10045069.838082