21131919 is an odd 8-digits composite number following 21131918
and preceding 21131920 . In scientific notation, it is written as 2.1131919 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors.
There are 14087940 positive integers (up to 21131919) that are relatively prime to 21131919.
21131919 has 6 divisors, whose sum is 30523896
The reverse of 21131919 is 91913112
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million one hundred thirty-one thousand nine hundred nineteen
Scientific notation
2.1131919 × 10^7
Engineering notation
2.1131919 × 10^6
Prime Factorization
3 × 3 × 2347991
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7043973
Product of the distinct prime numbers
The prime factorization of 21131919 is 3 × 3 × 2347991.
Since it has a total of 3 prime factors.
4 , 1 , 97 , 74 , 219 , 52 , 5196 , 6877 , 34612 , 74527 , 580882 , 40451 , 4216765 , 5068247 , 6268707 , 28014184 , 878603259 , 631285801 , 6516126052 , 4430453655
n×2
42263838
n×3
63395757
n×4
84527676
n×5
105659595
n÷2
10565959.5
n÷3
7043973
n÷3
5282979.75
n÷5
4226383.8
n2
446558000622561
n3
9.4366274979579E+21
n4
1.9941404792002E+29
n5
4.214001508108E+36
2 √n
4596.9467040635
3 √n
276.46891773904
4 √n
67.800786898556
5 √n
29.173449759565
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131918
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131919 can be divided by 6 positive divisors.
The sum of these divisors (counting 21131919) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000100111001010001111
3
Ternary
1110202121112200
4
Quaternary
1100213022033
5
Quinary
20402210134
6
Senary
2032532543
8
Octal
120471217
10
Decimal
21131919
12
Duodecimal
70b1153
16
Hexadecimal
142728f
20
Vigesimal
6c19fj
36
Base36
ckxhr
md5
c2f13c34e9f3f6c5563019123529da6f
sha1
cadc88c35358917285b68ee3f80b11dd5ef18fd3
sha256
f3b41f8573d1d118b7ddb4ffe03c0545d4a94de87b96dcf0ad6ed1b5138041e2
sha512
64b9286a73c6f87a9a9609ccad53b18382c5985a389fb8c2a5ce6d2aeeff275ffe62fa63320f99d2dbf07de4f2f5e51f1ad89343418e05ac9d84508cee3799d1
ripemd-160
95467986e9e73774a924811b03edba170eef4cf2
Diameter
42263838
Circumference
132775762.97331
Area
1.4029033341576E+15
Volume
3.9528052829664E+22
Surface area
5.6116133366303E+15
Circumference
132775762.97331
Perimeter
84527676
Area
446558000622561
Diagonal
29885046.44877
Surface area
2679348003735366
Volume
9.4366274979579E+21
Space diagonal
36601557.36943
Perimeter
63395757
Area
1.9336528640116E+14
Altitude
18300778.684715
Surface area
1.9336528640116E+14
Volume
1.1121172158896E+21
Height
9961682.1495899