21557068 is an even 8-digits composite number following 21557067
and preceding 21557069 . In scientific notation, it is written as 2.1557068 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 9949392 positive integers (up to 21557068) that are relatively prime to 21557068.
21557068 has 12 divisors, whose sum is 40626880
The reverse of 21557068 is 86075512
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million five hundred fifty-seven thousand sixty-eight
Scientific notation
2.1557068 × 10^7
Engineering notation
2.1557068 × 10^6
Prime Factorization
2 × 2 × 13 × 414559
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10778534
Product of the distinct prime numbers
The prime factorization of 21557068 is 2 × 2 × 13 × 414559.
Since it has a total of 4 prime factors.
4 , 9 , 52 , 42 , 891 , 809 , 2335 , 159 , 56379 , 50376 , 808025 , 500363 , 6562746 , 9583201 , 82858400 , 64535857 , 763460134 , 904403934 , 1061836231 , 2516956604
n×2
43114136
n×3
64671204
n×4
86228272
n×5
107785340
n÷2
10778534
n÷3
7185689.3333333
n÷3
5389267
n÷5
4311413.6
n2
464707180756624
n3
1.0017724295659E+22
n4
2.1595276384677E+29
n5
4.6553084150328E+36
2 √n
4642.9589703119
3 √n
278.3106958852
4 √n
68.139261592065
5 √n
29.289903331327
1 , 2 , 4 , 13 , 26 , 52 , 414559 , 829118 , 1658236 , 5389267 , 10778534 , 21557068
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
-21557067
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 21557068 can be divided by 12 positive divisors.
The sum of these divisors (counting 21557068) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010001110111101001100
3
Ternary
1111120012201221
4
Quaternary
1102032331030
5
Quinary
21004311233
6
Senary
2050013124
8
Octal
122167514
10
Decimal
21557068
12
Duodecimal
72771a4
16
Hexadecimal
148ef4c
20
Vigesimal
6eecd8
36
Base36
cu1jg
md5
29100fcdd7ce1565aac493e29c9dfa0e
sha1
20545a4a370bfcef3f0ca25ae74fc86cb42024fa
sha256
bf228a41dd7760ad862e7f9eb2d6a7c3b4ea55e893b2f45dd49d543496585b6d
sha512
d3f39ef0d9814cb85aec4993bedff88e2d8f09c085d28288c75c8cd7e7fc105de648d8eaa9607bbb7f8234346512f25832e8756d2b7643a1e7ef2e12b50e1850
ripemd-160
229187fb82373e7cb1518d21d0f99f22d8ec1328
Diameter
43114136
Circumference
135447052.92347
Area
1.4599206651354E+15
Volume
4.1962145403906E+22
Surface area
5.8396826605417E+15
Circumference
135447052.92347
Perimeter
86228272
Area
464707180756624
Diagonal
30486297.930599
Surface area
2788243084539744
Volume
1.0017724295659E+22
Space diagonal
37337937.038217
Perimeter
64671204
Area
2.0122411192814E+14
Altitude
18668968.519109
Surface area
2.0122411192814E+14
Volume
1.1806001302529E+21
Height
10162099.3102