21131493 is an odd 8-digits composite number following 21131492
and preceding 21131494 . In scientific notation, it is written as 2.1131493 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13211136 positive integers (up to 21131493) that are relatively prime to 21131493.
21131493 has 8 divisors, whose sum is 21623680
The reverse of 21131493 is 39413112
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million one hundred thirty-one thousand four hundred ninety-three
Scientific notation
2.1131493 × 10^7
Engineering notation
2.1131493 × 10^6
Prime Factorization
51 × 367 × 1129
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131493
Product of the distinct prime numbers
The prime factorization of 21131493 is 51 × 367 × 1129.
Since it has a total of 3 prime factors.
5 , 3 , 12 , 70 , 547 , 277 , 9096 , 5223 , 18404 , 56719 , 747497 , 132906 , 9786426 , 2055852 , 21156799 , 99155580 , 413330076 , 40934289 , 4306476503 , 156912963
n×2
42262986
n×3
63394479
n×4
84525972
n×5
105657465
n÷2
10565746.5
n÷3
7043831
n÷3
5282873.25
n÷5
4226298.6
n2
446539996409049
n3
9.4360568083378E+21
n4
1.9939796839299E+29
n5
4.2135767733108E+36
2 √n
4596.9003687267
3 √n
276.46705994042
4 √n
67.800445195638
5 √n
29.173332136648
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131492
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131493 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131493) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111000011100101
3
Ternary
1110202120221220
4
Quaternary
1100213003211
5
Quinary
20402201433
6
Senary
2032530553
8
Octal
120470345
10
Decimal
21131493
12
Duodecimal
70b0a59
16
Hexadecimal
14270e5
20
Vigesimal
6c18ed
36
Base36
ckx5x
md5
57c022cb544ccf4fb7ca8628e905d976
sha1
9be27697d0c523cdf5194808b32726b820778332
sha256
e6c7902e352df18c322d924b514972df7433b552ab644cd1ae872bcc7456388b
sha512
a641a888a91811d2cf28ba312cf6d69d77bc1d55dc01b3dbc57f2e5b4c74a590b9892d3f746f270173ea8579da3fbbbe9741c33a221ddbe497d3423236262af3
ripemd-160
ea812efb82485da8bae9817beee6e3bd0ffe2b62
Diameter
42262986
Circumference
132773086.33637
Area
1.4028467722527E+15
Volume
3.9525662330573E+22
Surface area
5.6113870890107E+15
Circumference
132773086.33637
Perimeter
84525972
Area
446539996409049
Diagonal
29884443.993792
Surface area
2679239978454294
Volume
9.4360568083378E+21
Space diagonal
36600819.515786
Perimeter
63394479
Area
1.9335749034802E+14
Altitude
18300409.757893
Surface area
1.9335749034802E+14
Volume
1.1120499594729E+21
Height
9961481.331264