21132881 is an odd 8-digits composite number following 21132880
and preceding 21132882 . In scientific notation, it is written as 2.1132881 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 16467120 positive integers (up to 21132881) that are relatively prime to 21132881.
21132881 has 8 divisors, whose sum is 26347584
The reverse of 21132881 is 18823112
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred thirty-two thousand eight hundred eighty-one
Scientific notation
2.1132881 × 10^7
Engineering notation
2.1132881 × 10^6
Prime Factorization
11 × 7 × 274453
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21132881
Product of the distinct prime numbers
The prime factorization of 21132881 is 11 × 7 × 274453.
Since it has a total of 3 prime factors.
9 , 2 , 43 , 22 , 10 , 646 , 4326 , 8741 , 80350 , 48679 , 256160 , 88654 , 8853245 , 115086 , 7369867 , 68639803 , 600660752 , 131355087 , 7818887839 , 7602045636
n×2
42265762
n×3
63398643
n×4
84531524
n×5
105664405
n÷2
10566440.5
n÷3
7044293.6666667
n÷3
5283220.25
n÷5
4226576.2
n2
446598659360161
n3
9.4379163230178E+21
n4
1.9945036254229E+29
n5
4.2149607770131E+36
2 √n
4597.0513375424
3 √n
276.47311295771
4 √n
67.801558518535
5 √n
29.173715370536
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
-21132880
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 21132881 can be divided by 8 positive divisors.
The sum of these divisors (counting 21132881) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111011001010001
3
Ternary
1110202122212022
4
Quaternary
1100213121101
5
Quinary
20402223011
6
Senary
2032541225
8
Octal
120473121
10
Decimal
21132881
12
Duodecimal
70b1815
16
Hexadecimal
1427651
20
Vigesimal
6c1c41
36
Base36
cky8h
md5
1d661f36ab59ff4a00ce525cc674962b
sha1
f354945fdc5a69b895c18dd0263027cbfb653196
sha256
8be2aceae7e2f35cd5018b2d05e9d76f6afe1c9feb03ae8cb43e0cb512ee96a4
sha512
70ad48347a02088dad85f9136d4c72afc6218825cdc44aa550b42ed8dc40075e8dbb957497cf3621ce853b52a0de3ff19c85688f0b0e3362dddb2b1ff10cfa17
ripemd-160
52883959dbd65545ea8ebf3e76007491b3a2d576
Diameter
42265762
Circumference
132781807.39757
Area
1.4030310673489E+15
Volume
3.9533451447451E+22
Surface area
5.6121242693957E+15
Circumference
132781807.39757
Perimeter
84531524
Area
446598659360161
Diagonal
29886406.922217
Surface area
2679591956160966
Volume
9.4379163230178E+21
Space diagonal
36603223.602307
Perimeter
63398643
Area
1.9338289215099E+14
Altitude
18301611.801153
Surface area
1.9338289215099E+14
Volume
1.1122691053795E+21
Height
9962135.6407389