21556768 is an even 8-digits composite number following 21556767
and preceding 21556769 . In scientific notation, it is written as 2.1556768 × 10^7.
The sum of its digits is 40. It has a total of 6 prime factors and 12 positive divisors.
There are 10778368 positive integers (up to 21556768) that are relatively prime to 21556768.
21556768 has 12 divisors, whose sum is 42439950
The reverse of 21556768 is 86765512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million five hundred fifty-six thousand seven hundred sixty-eight
Scientific notation
2.1556768 × 10^7
Engineering notation
2.1556768 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 673649
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
1347298
Product of the distinct prime numbers
The prime factorization of 21556768 is 2 × 2 × 2 × 2 × 2 × 673649.
Since it has a total of 6 prime factors.
1 , 2 , 43 , 16 , 458 , 63 , 3106 , 3097 , 68451 , 90093 , 671060 , 928354 , 4945246 , 6410508 , 97255138 , 60895659 , 288038583 , 400682485 , 4115793921 , 5719964390
n×2
43113536
n×3
64670304
n×4
86227072
n×5
107783840
n÷2
10778384
n÷3
7185589.3333333
n÷3
5389192
n÷5
4311353.6
n2
464694246605824
n3
1.0017306065017E+22
n4
2.1594074282855E+29
n5
4.6549844949028E+36
2 √n
4642.9266632158
3 √n
278.3094048377
4 √n
68.13902452498
5 √n
29.289821807997
1 , 2 , 4 , 8 , 16 , 32 , 673649 , 1347298 , 2694596 , 5389192 , 10778384 , 21556768
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21556767
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21556768 can be divided by 12 positive divisors.
The sum of these divisors (counting 21556768) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010001110111000100000
3
Ternary
1111120012022211
4
Quaternary
1102032320200
5
Quinary
21004304033
6
Senary
2050011504
8
Octal
122167040
10
Decimal
21556768
12
Duodecimal
7276b94
16
Hexadecimal
148ee20
20
Vigesimal
6eebi8
36
Base36
cu1b4
md5
396ff4ec167f33a656f8089ad4154281
sha1
2e0b46287c79be565af9f082716386568dd06dfa
sha256
f6101399b3feb55ca85474bcfcf9aa199de538eb189d50299a0b4850c9065af0
sha512
e96d727d7e6e3da505adbfdecc9fa87a52e58d0c2aa4a5b3d7922b2ec730778d894c27a397850e795fe8c25926d201c19b48c9a97e8a624dd27cd5f516edfd3e
ripemd-160
5c1c255c91beae90b2b3a7446278069253bd401c
Diameter
43113536
Circumference
135445167.96788
Area
1.4598800313023E+15
Volume
4.1960393523489E+22
Surface area
5.8395201252092E+15
Circumference
135445167.96788
Perimeter
86227072
Area
464694246605824
Diagonal
30485873.66653
Surface area
2788165479634944
Volume
1.0017306065017E+22
Space diagonal
37337417.422975
Perimeter
64670304
Area
2.0121851127656E+14
Altitude
18668708.711487
Surface area
2.0121851127656E+14
Volume
1.1805508412991E+21
Height
10161957.888843