21131211 is an odd 8-digits composite number following 21131210
and preceding 21131212 . In scientific notation, it is written as 2.1131211 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 13345992 positive integers (up to 21131211) that are relatively prime to 21131211.
21131211 has 8 divisors, whose sum is 29657920
The reverse of 21131211 is 11213112
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million one hundred thirty-one thousand two hundred eleven
Scientific notation
2.1131211 × 10^7
Engineering notation
2.1131211 × 10^6
Prime Factorization
3 × 19 × 370723
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131211
Product of the distinct prime numbers
The prime factorization of 21131211 is 3 × 19 × 370723.
Since it has a total of 3 prime factors.
6 , 2 , 33 , 14 , 770 , 1000 , 6356 , 8456 , 20083 , 14671 , 326992 , 697555 , 4123932 , 4883640 , 71170662 , 30030450 , 490300954 , 418951216 , 4801792826 , 3730652151
n×2
42262422
n×3
63393633
n×4
84524844
n×5
105656055
n÷2
10565605.5
n÷3
7043737
n÷3
5282802.75
n÷5
4226242.2
n2
446528078326521
n3
9.4356790405422E+21
n4
1.9938732473398E+29
n5
4.2132956296792E+36
2 √n
4596.8696957821
3 √n
276.46583011632
4 √n
67.80021899509
5 √n
29.173254272546
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
-21131210
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 21131211 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131211) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100110111111001011
3
Ternary
1110202120120110
4
Quaternary
1100212333023
5
Quinary
20402144321
6
Senary
2032525403
8
Octal
120467713
10
Decimal
21131211
12
Duodecimal
70b0863
16
Hexadecimal
1426fcb
20
Vigesimal
6c180b
36
Base36
ckwy3
md5
eb5709521c887a1d78f000a7e5703f89
sha1
8412df92586d5b87c05417cd246d6254ba4bb6af
sha256
cf22da88597ba75565a66dd3a59e798b75af3fa15f5768deb296f756ab1a6c03
sha512
bbba05d2919d0bf594da8a6bf4771f3f4c4fe765a5fafca7e362f931b1cb5da39551ad81a3f05e1feacd7accef37b6d4d28901724836127c851e017f08eaf8fb
ripemd-160
cf74283071df7ffde2c379daef2d6e7da963d342
Diameter
42262422
Circumference
132771314.47811
Area
1.4028093304922E+15
Volume
3.9524079940532E+22
Surface area
5.6112373219687E+15
Circumference
132771314.47811
Perimeter
84524844
Area
446528078326521
Diagonal
29884045.185568
Surface area
2679168469959126
Volume
9.4356790405422E+21
Space diagonal
36600331.077458
Perimeter
63393633
Area
1.9335232966691E+14
Altitude
18300165.538729
Surface area
1.9335232966691E+14
Volume
1.1120054391112E+21
Height
9961348.3951892