21132872 is an even 8-digits composite number following 21132871
and preceding 21132873 . In scientific notation, it is written as 2.1132872 × 10^7.
The sum of its digits is 26. It has a total of 6 prime factors and 32 positive divisors.
There are 10268544 positive integers (up to 21132872) that are relatively prime to 21132872.
21132872 has 32 divisors, whose sum is 40759200
The reverse of 21132872 is 27823112
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred thirty-two thousand eight hundred seventy-two
Scientific notation
2.1132872 × 10^7
Engineering notation
2.1132872 × 10^6
Prime Factorization
2 × 2 × 2 × 67 × 89 × 443
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5283218
Product of the distinct prime numbers
The prime factorization of 21132872 is 2 × 2 × 2 × 67 × 89 × 443.
Since it has a total of 6 prime factors.
1 , 2 , 28 , 63 , 114 , 1 , 8881 , 2148 , 83632 , 86821 , 879194 , 567916 , 9359743 , 8232211 , 49690691 , 51032605 , 610644526 , 34401770 , 2431426873 , 4332566526
n×2
42265744
n×3
63398616
n×4
84531488
n×5
105664360
n÷2
10566436
n÷3
7044290.6666667
n÷3
5283218
n÷5
4226574.4
n2
446598278968384
n3
9.4379042648592E+21
n4
1.9945002277752E+29
n5
4.2149518017545E+36
2 √n
4597.0503586539
3 √n
276.47307370989
4 √n
67.801551299759
5 √n
29.173712885655
1 , 2 , 4 , 8 , 67 , 89 , 134 , 178 , 268 , 356 , 443 , 536 , 712 , 886 , 1772 , 3544 , 5963 , 11926 , 23852 , 29681 , 39427 , 47704 , 59362 , 78854 , 118724 , 157708 , 237448 , 315416 , 2641609 , 5283218 , 10566436 , 21132872
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
-21132871
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 21132872 can be divided by 32 positive divisors.
The sum of these divisors (counting 21132872) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000100111011001001000
3
Ternary
1110202122211222
4
Quaternary
1100213121020
5
Quinary
20402222442
6
Senary
2032541212
8
Octal
120473110
10
Decimal
21132872
12
Duodecimal
70b1808
16
Hexadecimal
1427648
20
Vigesimal
6c1c3c
36
Base36
cky88
md5
1f7d0265dec1a3c4a4a4dabb70c1d837
sha1
8aadbd7fc16ef661ca76361037d39154621922db
sha256
57d2b258d8ed20b9622dc0d90064163beb467f11c36f2bbad2c9591853ebfd79
sha512
70c34bb0a95b8460f3e47cfb65ab732d589e77fe6e64653f00738e1702401a67a395b257717461e718e5b2c45dc3276ca3deb402a6734ddfb930ae8d246c745d
ripemd-160
75d17b4ebdbdac7027a96b36cc9a8480df8d4b7f
Diameter
42265744
Circumference
132781750.84891
Area
1.4030298723129E+15
Volume
3.9533400938354E+22
Surface area
5.6121194892517E+15
Circumference
132781750.84891
Perimeter
84531488
Area
446598278968384
Diagonal
29886394.194295
Surface area
2679589673810304
Volume
9.4379042648592E+21
Space diagonal
36603208.01385
Perimeter
63398616
Area
1.9338272743652E+14
Altitude
18301604.006925
Surface area
1.9338272743652E+14
Volume
1.1122676843119E+21
Height
9962131.3980982