21131492 is an even 8-digits composite number following 21131491
and preceding 21131493 . In scientific notation, it is written as 2.1131492 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 6 positive divisors.
There are 10565744 positive integers (up to 21131492) that are relatively prime to 21131492.
21131492 has 6 divisors, whose sum is 36980118
The reverse of 21131492 is 29413112
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred thirty-one thousand four hundred ninety-two
Scientific notation
2.1131492 × 10^7
Engineering notation
2.1131492 × 10^6
Prime Factorization
2 × 2 × 5282873
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10565746
Product of the distinct prime numbers
The prime factorization of 21131492 is 2 × 2 × 5282873.
Since it has a total of 3 prime factors.
8 , 10 , 79 , 43 , 912 , 605 , 7109 , 8922 , 28491 , 94240 , 936150 , 860367 , 3727174 , 4182510 , 96142827 , 72995033 , 987477289 , 403227960 , 9247888033 , 7236227798
n×2
42262984
n×3
63394476
n×4
84525968
n×5
105657460
n÷2
10565746
n÷3
7043830.6666667
n÷3
5282873
n÷5
4226298.4
n2
446539954146064
n3
9.4360554687179E+21
n4
1.9939793064877E+29
n5
4.213575776321E+36
2 √n
4596.9002599578
3 √n
276.46705557936
4 √n
67.800444393513
5 √n
29.173331860535
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
-21131491
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 21131492 can be divided by 6 positive divisors.
The sum of these divisors (counting 21131492) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000100111000011100100
3
Ternary
1110202120221212
4
Quaternary
1100213003210
5
Quinary
20402201432
6
Senary
2032530552
8
Octal
120470344
10
Decimal
21131492
12
Duodecimal
70b0a58
16
Hexadecimal
14270e4
20
Vigesimal
6c18ec
36
Base36
ckx5w
md5
352f9e568472f1432e4b0128adf48207
sha1
07f9b2bd4b3006b231886ab7403564ce546d3d25
sha256
3b47f27c4127afed42857edad5c36c24a2424a76ffd52ae0bda303b12fd8630c
sha512
dd1fd5d7b63c5d3e32c3521ec2db5f0ac0484fc4f777159e81cb57342d32ac587fd567a37f5e36e7780e62ce9f368be75227b37e16945c1cecbceee04768827c
ripemd-160
0fd4c8863bba426653e8d3b0e1ea9edcfaa92603
Diameter
42262984
Circumference
132773080.05318
Area
1.4028466394796E+15
Volume
3.9525656719187E+22
Surface area
5.6113865579184E+15
Circumference
132773080.05318
Perimeter
84525968
Area
446539954146064
Diagonal
29884442.579579
Surface area
2679239724876384
Volume
9.4360554687179E+21
Space diagonal
36600817.783735
Perimeter
63394476
Area
1.9335747204761E+14
Altitude
18300408.891868
Surface area
1.9335747204761E+14
Volume
1.1120498015971E+21
Height
9961480.8598595