21131207 is an odd 8-digits composite number following 21131206
and preceding 21131208 . In scientific notation, it is written as 2.1131207 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 21014280 positive integers (up to 21131207) that are relatively prime to 21131207.
21131207 has 4 divisors, whose sum is 21248136
The reverse of 21131207 is 70213112
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million one hundred thirty-one thousand two hundred seven
Scientific notation
2.1131207 × 10^7
Engineering notation
2.1131207 × 10^6
Prime Factorization
181 × 116747
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131207
Product of the distinct prime numbers
The prime factorization of 21131207 is 181 × 116747.
Since it has a total of 2 prime factors.
9 , 8 , 78 , 78 , 895 , 367 , 927 , 8246 , 59611 , 38435 , 789002 , 105067 , 2328759 , 115289 , 62955738 , 78755845 , 216182068 , 344087057 , 9114608248 , 5155339936
n×2
42262414
n×3
63393621
n×4
84524828
n×5
105656035
n÷2
10565603.5
n÷3
7043735.6666667
n÷3
5282801.75
n÷5
4226241.4
n2
446527909276849
n3
9.4356736822063E+21
n4
1.9938717376315E+29
n5
4.2132916419342E+36
2 √n
4596.8692607034
3 √n
276.46581267193
4 √n
67.800215786555
5 √n
29.173253168085
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131206
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131207 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131207) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110111111000111
3
Ternary
1110202120120022
4
Quaternary
1100212333013
5
Quinary
20402144312
6
Senary
2032525355
8
Octal
120467707
10
Decimal
21131207
12
Duodecimal
70b085b
16
Hexadecimal
1426fc7
20
Vigesimal
6c1807
36
Base36
ckwxz
md5
e1050222526c24c2bc6c74bdb34c238d
sha1
8ada7295f07208ec4d738b5a5f79155fd602e9f8
sha256
9f02beb65c18631a83749569111f6b479544f3ef3d489b4bd4d9e62e5a47a26d
sha512
dd80914bb29e41c4729e2d95118614e4eaf371e6ce06537eacdde5bd16874270581b94edd5f5f074444d7bae91043ad0bc3aca13f66645d8e86ddd5a9c099440
ripemd-160
53d2ec5dd4e1bd151a196afde1e26b49ed720e0b
Diameter
42262414
Circumference
132771289.34537
Area
1.402808799407E+15
Volume
3.9524057495587E+22
Surface area
5.6112351976278E+15
Circumference
132771289.34537
Perimeter
84524828
Area
446527909276849
Diagonal
29884039.528713
Surface area
2679167455661094
Volume
9.4356736822063E+21
Space diagonal
36600324.149255
Perimeter
63393621
Area
1.9335225646625E+14
Altitude
18300162.074628
Surface area
1.9335225646625E+14
Volume
1.1120048076253E+21
Height
9961346.5095711