21131864 is an even 8-digits composite number following 21131863
and preceding 21131865 . In scientific notation, it is written as 2.1131864 × 10^7.
The sum of its digits is 26. It has a total of 6 prime factors and 32 positive divisors.
There are 9590400 positive integers (up to 21131864) that are relatively prime to 21131864.
21131864 has 32 divisors, whose sum is 43382640
The reverse of 21131864 is 46813112
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred thirty-one thousand eight hundred sixty-four
Scientific notation
2.1131864 × 10^7
Engineering notation
2.1131864 × 10^6
Prime Factorization
2 × 2 × 2 × 13 × 61 × 3331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5282966
Product of the distinct prime numbers
The prime factorization of 21131864 is 2 × 2 × 2 × 13 × 61 × 3331.
Since it has a total of 6 prime factors.
1 , 7 , 59 , 86 , 932 , 459 , 9295 , 6605 , 99135 , 84620 , 59311 , 226367 , 8120880 , 8834037 , 25412776 , 51840984 , 348437413 , 749242199 , 9021434423 , 1716449914
n×2
42263728
n×3
63395592
n×4
84527456
n×5
105659320
n÷2
10565932
n÷3
7043954.6666667
n÷3
5282966
n÷5
4226372.8
n2
446555676114496
n3
9.4365538160796E+21
n4
1.9941197187007E+29
n5
4.2139466695302E+36
2 √n
4596.9407218279
3 √n
276.46867788382
4 √n
67.800742782273
5 √n
29.173434573614
1 , 2 , 4 , 8 , 13 , 26 , 52 , 61 , 104 , 122 , 244 , 488 , 793 , 1586 , 3172 , 3331 , 6344 , 6662 , 13324 , 26648 , 43303 , 86606 , 173212 , 203191 , 346424 , 406382 , 812764 , 1625528 , 2641483 , 5282966 , 10565932 , 21131864
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131863
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131864 can be divided by 32 positive divisors.
The sum of these divisors (counting 21131864) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000100111001001011000
3
Ternary
1110202121110122
4
Quaternary
1100213021120
5
Quinary
20402204424
6
Senary
2032532412
8
Octal
120471130
10
Decimal
21131864
12
Duodecimal
70b1108
16
Hexadecimal
1427258
20
Vigesimal
6c19d4
36
Base36
ckxg8
md5
de36c08fd1f103927de1105a3435e598
sha1
ddd64c7f995f4402369d54bd52fb72b653c4288f
sha256
3221dfb2b02bb3cccc64febf97f79068516a6fe4b3f4da8daf4bbf98cea297b9
sha512
d3a66c49808ad8448746774963d7769bf1a3b8fd28851290d9554397b980e3215b9b70a9a2d05a6ccef7a26a4ee8ebfc9f82b91b70ddbbe5bb1740bde7188163
ripemd-160
0d8b41962cc98d1e0b13bc96095e828f68046723
Diameter
42263728
Circumference
132775417.39812
Area
1.4028960315001E+15
Volume
3.9527744191734E+22
Surface area
5.6115841260005E+15
Circumference
132775417.39812
Perimeter
84527456
Area
446555676114496
Diagonal
29884968.667024
Surface area
2679334056686976
Volume
9.4365538160796E+21
Space diagonal
36601462.106636
Perimeter
63395592
Area
1.9336427985964E+14
Altitude
18300731.053318
Surface area
1.9336427985964E+14
Volume
1.1121085323969E+21
Height
9961656.2223413