21031212 is an even 8-digits composite number following 21031211
and preceding 21031213 . In scientific notation, it is written as 2.1031212 × 10^7.
The sum of its digits is 12. It has a total of 4 prime factors and 12 positive divisors.
There are 7010400 positive integers (up to 21031212) that are relatively prime to 21031212.
21031212 has 12 divisors, whose sum is 49072856
The reverse of 21031212 is 21213012
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million thirty-one thousand two hundred twelve
Scientific notation
2.1031212 × 10^7
Engineering notation
2.1031212 × 10^6
Prime Factorization
2 × 2 × 3 × 1752601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10515606
Product of the distinct prime numbers
The prime factorization of 21031212 is 2 × 2 × 3 × 1752601.
Since it has a total of 4 prime factors.
7 , 9 , 19 , 29 , 11 , 171 , 672 , 6313 , 7164 , 85645 , 41048 , 589357 , 4332589 , 264815 , 10254190 , 95253608 , 740199051 , 476061325 , 627019648 , 6911238873
n×2
42062424
n×3
63093636
n×4
84124848
n×5
105156060
n÷2
10515606
n÷3
7010404
n÷3
5257803
n÷5
4206242.4
n2
442311878188944
n3
9.3023548803099E+21
n4
1.9563979758703E+29
n5
4.1145420586899E+36
2 √n
4585.9799389007
3 √n
276.02903496266
4 √n
67.719863695232
5 √n
29.145590603091
1 , 2 , 3 , 4 , 6 , 12 , 1752601 , 3505202 , 5257803 , 7010404 , 10515606 , 21031212
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031212 can be divided by 12 positive divisors.
The sum of these divisors (counting 21031212) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000001110100100101100
3
Ternary
1110120111101210
4
Quaternary
1100032210230
5
Quinary
20340444322
6
Senary
2030434420
8
Octal
120164454
10
Decimal
21031212
12
Duodecimal
7062a10
16
Hexadecimal
140e92c
20
Vigesimal
6b8i0c
36
Base36
cirsc
md5
1127f37a984337e70b808bfd2c4929e6
sha1
0d1e0d4fd092796353064d47a756dfa7073cff5c
sha256
fe10df1a41d4d956f22d112398654e46554b5446de69b929cc8fe4bcc775907f
sha512
4a658b487b0f68d5cf500cf9c65a6e9e7752f99dbc9d22c41d6c790d68c6b8062465471e70799bf30fbac772fdd629afc78653596234670c9917c0a680460956
ripemd-160
7043c88aa39287083ca2514d7d49628f0858ab59
Diameter
42062424
Circumference
132143002.23058
Area
1.3895637471139E+15
Volume
3.8965613004089E+22
Surface area
5.5582549884556E+15
Circumference
132143002.23058
Perimeter
84124848
Area
442311878188944
Diagonal
29742625.243544
Surface area
2653871269133664
Volume
9.3023548803099E+21
Space diagonal
36427127.728752
Perimeter
63093636
Area
1.9152666145362E+14
Altitude
18213563.864376
Surface area
1.9152666145362E+14
Volume
1.0962930361451E+21
Height
9914208.4145146