21231212 is an even 8-digits composite number following 21231211
and preceding 21231213 . In scientific notation, it is written as 2.1231212 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 6 positive divisors.
There are 10615604 positive integers (up to 21231212) that are relatively prime to 21231212.
21231212 has 6 divisors, whose sum is 37154628
The reverse of 21231212 is 21213212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million two hundred thirty-one thousand two hundred twelve
Scientific notation
2.1231212 × 10^7
Engineering notation
2.1231212 × 10^6
Prime Factorization
2 × 2 × 5307803
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10615606
Product of the distinct prime numbers
The prime factorization of 21231212 is 2 × 2 × 5307803.
Since it has a total of 3 prime factors.
6 , 9 , 91 , 49 , 624 , 221 , 2079 , 3554 , 12099 , 59914 , 957851 , 516648 , 9905353 , 4516521 , 31174803 , 28116936 , 177045869 , 555083359 , 5115672079 , 8691441228
n×2
42462424
n×3
63693636
n×4
84924848
n×5
106156060
n÷2
10615606
n÷3
7077070.6666667
n÷3
5307803
n÷5
4246242.4
n2
450764362988944
n3
9.5702737526632E+21
n4
2.0318851094083E+29
n5
4.313938351749E+36
2 √n
4607.7339332909
3 √n
276.90125810208
4 √n
67.88029119922
5 √n
29.200813959614
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
-21231211
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 21231212 can be divided by 6 positive divisors.
The sum of these divisors (counting 21231212) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000111111011001101100
3
Ternary
1110221122202012
4
Quaternary
1100333121230
5
Quinary
20413344322
6
Senary
2035020352
8
Octal
120773154
10
Decimal
21231212
12
Duodecimal
713a6b8
16
Hexadecimal
143f66c
20
Vigesimal
6cdi0c
36
Base36
cn23w
md5
d94e8ae0f4142461f6b0ed5130b7572b
sha1
fce6e220085a7b702cf9e5a2c2c2dd9b9dc9142c
sha256
bc849048f3ec9dada24082130d836b44f54914a9d52e651928c97b167928bd8a
sha512
c799c69b494af65af91cadc8c928ad1e71ab98af6b4f2058c93eeaf8d2fe5f9677d15de4076791815587cea66f3767d6ce46a526b44d507866e28fa9670c76da
ripemd-160
95933fa930cc1e0af3bcc1ccb231b3f1aa4e8d01
Diameter
42462424
Circumference
133399639.29201
Area
1.4161180112661E+15
Volume
4.008786895228E+22
Surface area
5.6644720450646E+15
Circumference
133399639.29201
Perimeter
84924848
Area
450764362988944
Diagonal
30025467.956018
Surface area
2704586177933664
Volume
9.5702737526632E+21
Space diagonal
36773537.890266
Perimeter
63693636
Area
1.9518669473457E+14
Altitude
18386768.945133
Surface area
1.9518669473457E+14
Volume
1.1278675780533E+21
Height
10008489.318673