21931749 is an odd 8-digits composite number following 21931748
and preceding 21931750 . In scientific notation, it is written as 2.1931749 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 12532320 positive integers (up to 21931749) that are relatively prime to 21931749.
21931749 has 8 divisors, whose sum is 29706752
The reverse of 21931749 is 94713912
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million nine hundred thirty-one thousand seven hundred forty-nine
Scientific notation
2.1931749 × 10^7
Engineering notation
2.1931749 × 10^6
Prime Factorization
63 × 3 × 116041
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21931749
Product of the distinct prime numbers
The prime factorization of 21931749 is 63 × 3 × 116041.
Since it has a total of 3 prime factors.
7 , 6 , 32 , 90 , 471 , 29 , 809 , 7637 , 84967 , 63267 , 235552 , 752128 , 5746135 , 3590265 , 44909060 , 81316288 , 921980415 , 794508649 , 5387235139 , 5347681238
n×2
43863498
n×3
65795247
n×4
87726996
n×5
109658745
n÷2
10965874.5
n÷3
7310583
n÷3
5482937.25
n÷5
4386349.8
n2
481001614199001
n3
1.0549206671207E+22
n4
2.3136255286204E+29
n5
5.0741854373696E+36
2 √n
4683.1345272157
3 √n
279.91387231946
4 √n
68.433431356434
5 √n
29.391019667422
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
-21931748
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 21931749 can be divided by 8 positive divisors.
The sum of these divisors (counting 21931749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011101010011011100101
3
Ternary
1112021020201000
4
Quaternary
1103222123211
5
Quinary
21103303444
6
Senary
2102023513
8
Octal
123523345
10
Decimal
21931749
12
Duodecimal
7417b99
16
Hexadecimal
14ea6e5
20
Vigesimal
6h1979
36
Base36
d22n9
md5
4811272cdd8b403b39c5c2044d921540
sha1
4bcbf8fa67aa2942bd3131d404cd658ab4d55363
sha256
d24d2fe9af2f25192bc8ebd682910fbe76ba37eae6d52b69ba53a354f71d82fb
sha512
805b3d06025c1e525689c7b03872a8f9f0700118c1ca04b219c56f332aa50a0bd62bd238ed6c990d4662f0baabc7415712bc66e62b217a92e257fc833c1dbea2
ripemd-160
c1103ed7f0e843e9e24486c27e0b03e66d2dd63f
Diameter
43863498
Circumference
137801243.07755
Area
1.5111111375324E+15
Volume
4.418841357262E+22
Surface area
6.0444445501297E+15
Circumference
137801243.07755
Perimeter
87726996
Area
481001614199001
Diagonal
31016176.882363
Surface area
2886009685194006
Volume
1.0549206671207E+22
Space diagonal
37986903.566848
Perimeter
65795247
Area
2.0827980857883E+14
Altitude
18993451.783424
Surface area
2.0827980857883E+14
Volume
1.2432359288915E+21
Height
10338725.627454