21921288 is an even 8-digits composite number following 21921287
and preceding 21921289 . In scientific notation, it is written as 2.1921288 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 32 positive divisors.
There are 6922368 positive integers (up to 21921288) that are relatively prime to 21921288.
21921288 has 32 divisors, whose sum is 57688800
The reverse of 21921288 is 88212912
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million nine hundred twenty-one thousand two hundred eighty-eight
Scientific notation
2.1921288 × 10^7
Engineering notation
2.1921288 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 19 × 48073
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5480322
Product of the distinct prime numbers
The prime factorization of 21921288 is 2 × 2 × 2 × 3 × 19 × 48073.
Since it has a total of 6 prime factors.
2 , 5 , 55 , 35 , 286 , 68 , 9542 , 5029 , 61524 , 65502 , 423867 , 151299 , 1878310 , 7249824 , 68566997 , 13135607 , 392272131 , 734500353 , 7109301192 , 2915019521
n×2
43842576
n×3
65763864
n×4
87685152
n×5
109606440
n÷2
10960644
n÷3
7307096
n÷3
5480322
n÷5
4384257.6
n2
480542867578944
n3
1.0534118596544E+22
n4
2.3092144758099E+29
n5
5.0620955577999E+36
2 √n
4682.0175138502
3 √n
279.86936082607
4 √n
68.425269556285
5 √n
29.388215348129
1 , 2 , 3 , 4 , 6 , 8 , 12 , 19 , 24 , 38 , 57 , 76 , 114 , 152 , 228 , 456 , 48073 , 96146 , 144219 , 192292 , 288438 , 384584 , 576876 , 913387 , 1153752 , 1826774 , 2740161 , 3653548 , 5480322 , 7307096 , 10960644 , 21921288
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21921287
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21921288 can be divided by 32 positive divisors.
The sum of these divisors (counting 21921288) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011100111111000001000
3
Ternary
1112020201100120
4
Quaternary
1103213320020
5
Quinary
21102440123
6
Senary
2101503240
8
Octal
123477010
10
Decimal
21921288
12
Duodecimal
7411b20
16
Hexadecimal
14e7e08
20
Vigesimal
6h0348
36
Base36
d1uko
md5
cee5e43e9c774788e1945eadf7dadd9e
sha1
67461618c4009642056a084a4c8428cabc3fe198
sha256
0cece4a24c0d4c5148aa908b9352e474a1ca47c868a1406f4f6b4c5ee23ab516
sha512
2894cde876b129b8f8672477af846497f297d7d0a15ce3a062b77fd42a99b1ee2175a5de06dd7820ea7159aa5e3b70166d8ae4b45d7aecb57a0709a21f9d3a0e
ripemd-160
582b8a47101077ed6621794cc0d228d5b2233705
Diameter
43842576
Circumference
137735514.67605
Area
1.509669942521E+15
Volume
4.4125212793261E+22
Surface area
6.0386797700839E+15
Circumference
137735514.67605
Perimeter
87685152
Area
480542867578944
Diagonal
31001382.794287
Surface area
2883257205473664
Volume
1.0534118596544E+22
Space diagonal
37968784.58335
Perimeter
65763864
Area
2.0808116546539E+14
Altitude
18984392.291675
Surface area
2.0808116546539E+14
Volume
1.2414577822399E+21
Height
10333794.264762