21132887 is an odd 8-digits composite number following 21132886
and preceding 21132888 . In scientific notation, it is written as 2.1132887 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19889760 positive integers (up to 21132887) that are relatively prime to 21132887.
21132887 has 4 divisors, whose sum is 22376016
The reverse of 21132887 is 78823112
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million one hundred thirty-two thousand eight hundred eighty-seven
Scientific notation
2.1132887 × 10^7
Engineering notation
2.1132887 × 10^6
Prime Factorization
17 × 1243111
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21132887
Product of the distinct prime numbers
The prime factorization of 21132887 is 17 × 1243111.
Since it has a total of 2 prime factors.
1 , 5 , 76 , 55 , 178 , 428 , 1476 , 2121 , 64397 , 91684 , 413845 , 302766 , 811528 , 7786312 , 29503830 , 98196186 , 364057910 , 578170099 , 1413683290 , 1894804996
n×2
42265774
n×3
63398661
n×4
84531548
n×5
105664435
n÷2
10566443.5
n÷3
7044295.6666667
n÷3
5283221.75
n÷5
4226577.4
n2
446598912954769
n3
9.437924361796E+21
n4
1.9945058905238E+29
n5
4.2149667605274E+36
2 √n
4597.0519901345
3 √n
276.47313912291
4 √n
67.801563331051
5 √n
29.173717027123
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
-21132886
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 21132887 can be divided by 4 positive divisors.
The sum of these divisors (counting 21132887) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100111011001010111
3
Ternary
1110202122212112
4
Quaternary
1100213121113
5
Quinary
20402223022
6
Senary
2032541235
8
Octal
120473127
10
Decimal
21132887
12
Duodecimal
70b181b
16
Hexadecimal
1427657
20
Vigesimal
6c1c47
36
Base36
cky8n
md5
62319051b92805cfe7b995aec4ddfc2d
sha1
ea9af4de375fe9defb3701d754e058273d9eb0f1
sha256
282b5e436d2231244a5f7d8f30026b1e477ef3d233b6d576601d51453427372e
sha512
e84fba677a6f8d3e9fd88616f997153e35bcf45b11a53fd4fbad63417b4f0daef97c47091f8d10b2b513bfe940f80ba77eab334f13ebabe13f469e2f22c54990
ripemd-160
c0958c510164ff1d8dfbb45b3f6bfbe851d54661
Diameter
42265774
Circumference
132781845.09669
Area
1.4030318640399E+15
Volume
3.9533485120206E+22
Surface area
5.6121274561596E+15
Circumference
132781845.09669
Perimeter
84531548
Area
446598912954769
Diagonal
29886415.407498
Surface area
2679593477728614
Volume
9.437924361796E+21
Space diagonal
36603233.994612
Perimeter
63398661
Area
1.9338300196067E+14
Altitude
18301616.997306
Surface area
1.9338300196067E+14
Volume
1.1122700527586E+21
Height
9962138.469166