21509212 is an even 8-digits composite number following 21509211
and preceding 21509213 . In scientific notation, it is written as 2.1509212 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 6 positive divisors.
There are 10754604 positive integers (up to 21509212) that are relatively prime to 21509212.
21509212 has 6 divisors, whose sum is 37641128
The reverse of 21509212 is 21290512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million five hundred nine thousand two hundred twelve
Scientific notation
2.1509212 × 10^7
Engineering notation
2.1509212 × 10^6
Prime Factorization
2 × 2 × 5377303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10754606
Product of the distinct prime numbers
The prime factorization of 21509212 is 2 × 2 × 5377303.
Since it has a total of 3 prime factors.
2 , 4 , 96 , 4 , 998 , 999 , 6800 , 1488 , 58518 , 31882 , 603999 , 293504 , 7291199 , 7202911 , 29217189 , 12078847 , 456875199 , 509027546 , 4734722751 , 4545894928
n×2
43018424
n×3
64527636
n×4
86036848
n×5
107546060
n÷2
10754606
n÷3
7169737.3333333
n÷3
5377303
n÷5
4301842.4
n2
462646200860944
n3
9.9511552153126E+21
n4
2.1404150717106E+29
n5
4.603864154542E+36
2 √n
4637.8024968728
3 √n
278.104596357
4 √n
68.101413325076
5 √n
29.276887238751
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21509211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21509212 can be divided by 6 positive divisors.
The sum of these divisors (counting 21509212) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010010000011010001011100
3
Ternary
1111110210002111
4
Quaternary
1102003101130
5
Quinary
21001243322
6
Senary
2045003404
8
Octal
122032134
10
Decimal
21509212
12
Duodecimal
7253564
16
Hexadecimal
148345c
20
Vigesimal
6e8d0c
36
Base36
ct0m4
md5
fed5789eb8d09578166fda65d09229cb
sha1
e2d33277e0ed73876320f07edfab37bcf61472dc
sha256
26a82cbaa42924b0a865ed09fe851012d095332ab3a81f4d9eb8018f3a2709db
sha512
853768e609e20abd78c72b638712e9826f27ac3c04f3140db549eba127032f0bc87bc40738736276ee47e05874d2bc25901c9ff9aa72aafb7c62d43e540c5f76
ripemd-160
e0ca0e92aadc6f12f77bcd0f4de7f1eac74387e9
Diameter
43018424
Circumference
135146364.80741
Area
1.453445905836E+15
Volume
4.1683301492211E+22
Surface area
5.8137836233439E+15
Circumference
135146364.80741
Perimeter
86036848
Area
462646200860944
Diagonal
30418619.326358
Surface area
2775877205165664
Volume
9.9511552153126E+21
Space diagonal
37255048.01477
Perimeter
64527636
Area
2.0033168145497E+14
Altitude
18627524.007385
Surface area
2.0033168145497E+14
Volume
1.1727548888979E+21
Height
10139539.775453