21742281 is an odd 8-digits composite number following 21742280
and preceding 21742282 . In scientific notation, it is written as 2.1742281 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13177080 positive integers (up to 21742281) that are relatively prime to 21742281.
21742281 has 8 divisors, whose sum is 26354400
The reverse of 21742281 is 18224712
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million seven hundred forty-two thousand two hundred eighty-one
Scientific notation
2.1742281 × 10^7
Engineering notation
2.1742281 × 10^6
Prime Factorization
9 × 11 × 219619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21742281
Product of the distinct prime numbers
The prime factorization of 21742281 is 9 × 11 × 219619.
Since it has a total of 3 prime factors.
5 , 7 , 50 , 2 , 403 , 733 , 7026 , 3119 , 89591 , 67234 , 471196 , 230019 , 8670414 , 4924892 , 5457606 , 23264159 , 330128727 , 329491109 , 6518930004 , 9819812201
n×2
43484562
n×3
65226843
n×4
86969124
n×5
108711405
n÷2
10871140.5
n÷3
7247427
n÷3
5435570.25
n÷5
4348456.2
n2
472726783082961
n3
1.0278158554016E+22
n4
2.2347061144396E+29
n5
4.8587608292565E+36
2 √n
4662.8618894409
3 √n
279.105482911
4 √n
68.285151310082
5 √n
29.340061569364
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
-21742280
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 21742281 can be divided by 8 positive divisors.
The sum of these divisors (counting 21742281) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010111100001011001001
3
Ternary
1111220121210200
4
Quaternary
1102330023021
5
Quinary
21031223111
6
Senary
2054002413
8
Octal
122741311
10
Decimal
21742281
12
Duodecimal
7346409
16
Hexadecimal
14bc2c9
20
Vigesimal
6fhfe1
36
Base36
cy0g9
md5
4e144a4eb3b88c4f311cc22dfe427aef
sha1
00686fcc18f379ab1ba5003d7e05d65738bad4b8
sha256
eed12afec1d9e1ec76cb237a3357ecfb344d2e5e4bfa4f8d81ade54a22335a6d
sha512
a2c02857229ffeca9e6e52fabe9896a70b94702d3114a3149be4098065b50d4f5d936e4d19a277695b2c74e4de04681608b959a926e5ee5a333457b360431e10
ripemd-160
819c0a72033937f651719196b8bbda3bea18f648
Diameter
43484562
Circumference
136610780.52377
Area
1.4851149888886E+15
Volume
4.3053049874303E+22
Surface area
5.9404599555543E+15
Circumference
136610780.52377
Perimeter
86969124
Area
472726783082961
Diagonal
30748228.667127
Surface area
2836360698497766
Volume
1.0278158554016E+22
Space diagonal
37658735.364439
Perimeter
65226843
Area
2.0469670159957E+14
Altitude
18829367.68222
Surface area
2.0469670159957E+14
Volume
1.2112926019425E+21
Height
10249409.555709