21557026 is an even 8-digits composite number following 21557025
and preceding 21557027 . In scientific notation, it is written as 2.1557026 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 10256400 positive integers (up to 21557026) that are relatively prime to 21557026.
21557026 has 16 divisors, whose sum is 33916608
The reverse of 21557026 is 62075512
Previous prime number is 211
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-seven thousand twenty-six
Scientific notation
2.1557026 × 10^7
Engineering notation
2.1557026 × 10^6
Prime Factorization
2 × 23 × 211 × 2221
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21557026
Product of the distinct prime numbers
The prime factorization of 21557026 is 2 × 23 × 211 × 2221.
Since it has a total of 4 prime factors.
5 , 8 , 3 , 11 , 593 , 442 , 6363 , 3643 , 22280 , 74778 , 601659 , 517556 , 3192776 , 7040089 , 30683372 , 65103495 , 274333394 , 212145478 , 4345192422 , 2284791668
n×2
43114052
n×3
64671078
n×4
86228104
n×5
107785130
n÷2
10778513
n÷3
7185675.3333333
n÷3
5389256.5
n÷5
4311405.2
n2
464705369964676
n3
1.0017665742668E+22
n4
2.1595108087401E+29
n5
4.6552630651291E+36
2 √n
4642.954447332
3 √n
278.31051513927
4 √n
68.139228402822
5 √n
29.289891918116
1 , 2 , 23 , 46 , 211 , 422 , 2221 , 4442 , 4853 , 9706 , 51083 , 102166 , 468631 , 937262 , 10778513 , 21557026
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21557025
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21557026 can be divided by 16 positive divisors.
The sum of these divisors (counting 21557026) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001110111100100010
3
Ternary
1111120012200101
4
Quaternary
1102032330202
5
Quinary
21004311101
6
Senary
2050013014
8
Octal
122167442
10
Decimal
21557026
12
Duodecimal
727716a
16
Hexadecimal
148ef22
20
Vigesimal
6eecb6
36
Base36
cu1ia
md5
a11f831d9340ad54209d8b0418d91b4d
sha1
456c6ac155e9cedb8462c417f4389e84957bf996
sha256
c13df1a7593c3077049b9b9bac802f0505f40963037fdff1421b98afadd5c614
sha512
fef447e84fa21ec1065031f6e7210ead05848701fae4d342da8674b339020249899e1312990f5dbfc560182f2e09d13dc46cafb395feeef6eaad8b7be5038b93
ripemd-160
7f57741e5e1495be042bc381104d3f6408c48661
Diameter
43114052
Circumference
135446789.02969
Area
1.4599149763648E+15
Volume
4.1961900137712E+22
Surface area
5.839659905459E+15
Circumference
135446789.02969
Perimeter
86228104
Area
464705369964676
Diagonal
30486238.533629
Surface area
2788232219788056
Volume
1.0017665742668E+22
Space diagonal
37337864.292083
Perimeter
64671078
Area
2.0122332783223E+14
Altitude
18668932.146042
Surface area
2.0122332783223E+14
Volume
1.1805932297168E+21
Height
10162079.51121