21131206 is an even 8-digits composite number following 21131205
and preceding 21131207 . In scientific notation, it is written as 2.1131206 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 10316800 positive integers (up to 21131206) that are relatively prime to 21131206.
21131206 has 16 divisors, whose sum is 32449248
The reverse of 21131206 is 60213112
Previous prime number is 641
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million one hundred thirty-one thousand two hundred six
Scientific notation
2.1131206 × 10^7
Engineering notation
2.1131206 × 10^6
Prime Factorization
2 × 53 × 641 × 311
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21131206
Product of the distinct prime numbers
The prime factorization of 21131206 is 2 × 53 × 641 × 311.
Since it has a total of 4 prime factors.
9 , 6 , 26 , 100 , 11 , 643 , 2972 , 2650 , 52589 , 65821 , 763340 , 101658 , 9909709 , 9300038 , 91118730 , 82121820 , 101159508 , 203151467 , 1424885723 , 4751179841
n×2
42262412
n×3
63393618
n×4
84524824
n×5
105656030
n÷2
10565603
n÷3
7043735.3333333
n÷3
5282801.5
n÷5
4226241.2
n2
446527867014436
n3
9.4356723426227E+21
n4
1.9938713602046E+29
n5
4.2132906449984E+36
2 √n
4596.8691519337
3 √n
276.46580831083
4 √n
67.800214984421
5 √n
29.173252891969
1 , 2 , 53 , 106 , 311 , 622 , 641 , 1282 , 16483 , 32966 , 33973 , 67946 , 199351 , 398702 , 10565603 , 21131206
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131205
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131206 can be divided by 16 positive divisors.
The sum of these divisors (counting 21131206) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100110111111000110
3
Ternary
1110202120120021
4
Quaternary
1100212333012
5
Quinary
20402144311
6
Senary
2032525354
8
Octal
120467706
10
Decimal
21131206
12
Duodecimal
70b085a
16
Hexadecimal
1426fc6
20
Vigesimal
6c1806
36
Base36
ckwxy
md5
ae083e0f89f35c73028ffe192cc76fb3
sha1
49a2afd05ee987d54558a64fc996ae01f1269fe1
sha256
cc8415fa527cdaca0e43a8cdcdf0574cb35b518cb60b5d7d3ad144a071ced541
sha512
72268f6dd83ea103f482b20cd76f3be5d4ca6b88e413d70dfec57c3e8f22178be9fae2828f550ae7466f3facf1e891ebd31b62202dd594ec856c96e12eb89a7f
ripemd-160
78c01bfb02e98379daba886f93e816352c12fd9e
Diameter
42262412
Circumference
132771283.06219
Area
1.4028086666357E+15
Volume
3.9524051884352E+22
Surface area
5.6112346665427E+15
Circumference
132771283.06219
Perimeter
84524824
Area
446527867014436
Diagonal
29884038.1145
Surface area
2679167202086616
Volume
9.4356723426227E+21
Space diagonal
36600322.417204
Perimeter
63393618
Area
1.9335223816609E+14
Altitude
18300161.208602
Surface area
1.9335223816609E+14
Volume
1.1120046497538E+21
Height
9961346.0381666