21132815 is an odd 8-digits composite number following 21132814
and preceding 21132816 . In scientific notation, it is written as 2.1132815 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 15273600 positive integers (up to 21132815) that are relatively prime to 21132815.
21132815 has 16 divisors, whose sum is 27837216
The reverse of 21132815 is 51823112
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred thirty-two thousand eight hundred fifteen
Scientific notation
2.1132815 × 10^7
Engineering notation
2.1132815 × 10^6
Prime Factorization
5 × 11 × 173 × 2221
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21132815
Product of the distinct prime numbers
The prime factorization of 21132815 is 5 × 11 × 173 × 2221.
Since it has a total of 4 prime factors.
3 , 8 , 40 , 25 , 937 , 289 , 4353 , 5581 , 62411 , 23340 , 846396 , 655867 , 9338565 , 4912592 , 30750175 , 67397539 , 836347473 , 970832413 , 9693311811 , 7742958887
n×2
42265630
n×3
63398445
n×4
84531260
n×5
105664075
n÷2
10566407.5
n÷3
7044271.6666667
n÷3
5283203.75
n÷5
4226563
n2
446595869824225
n3
9.4378278967594E+21
n4
1.9944787094406E+29
n5
4.2148949588046E+36
2 √n
4597.0441590222
3 √n
276.47282514012
4 √n
67.801505580792
5 √n
29.173697148055
1 , 5 , 11 , 55 , 173 , 865 , 1903 , 2221 , 9515 , 11105 , 24431 , 122155 , 384233 , 1921165 , 4226563 , 21132815
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21132814
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21132815 can be divided by 16 positive divisors.
The sum of these divisors (counting 21132815) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100111011000001111
3
Ternary
1110202122202212
4
Quaternary
1100213120033
5
Quinary
20402222230
6
Senary
2032541035
8
Octal
120473017
10
Decimal
21132815
12
Duodecimal
70b177b
16
Hexadecimal
142760f
20
Vigesimal
6c1c0f
36
Base36
cky6n
md5
85a8aed99e969c6f72c909ca2b940ddb
sha1
2c9dc3ab032a47529ce80e181838e6740331e4cc
sha256
31dc0cad09639039ab566dfe17d8b42578ba07c77610e62fbd76ec1288ab16e8
sha512
a2bdb2cff2fc3434bc60eb51f5e6b2cec367df552b41b02bbe2259db5d99569518211ddcef535d555a584be1faaad43b427e59865e9c3b7029bd874d76c064ba
ripemd-160
0ddd766b72851f580422c45d3930acbcc1f79350
Diameter
42265630
Circumference
132781392.70734
Area
1.4030223037633E+15
Volume
3.9533081048406E+22
Surface area
5.6120892150533E+15
Circumference
132781392.70734
Perimeter
84531260
Area
446595869824225
Diagonal
29886313.584122
Surface area
2679575218945350
Volume
9.4378278967594E+21
Space diagonal
36603109.286954
Perimeter
63398445
Area
1.9338168424649E+14
Altitude
18301554.643477
Surface area
1.9338168424649E+14
Volume
1.112258684245E+21
Height
9962104.5280405