21557030 is an even 8-digits composite number following 21557029
and preceding 21557031 . In scientific notation, it is written as 2.1557030 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 7838880 positive integers (up to 21557030) that are relatively prime to 21557030.
21557030 has 16 divisors, whose sum is 42330384
The reverse of 21557030 is 03075512
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million five hundred fifty-seven thousand thirty
Scientific notation
2.1557030 × 10^7
Engineering notation
2.1557030 × 10^6
Prime Factorization
2 × 5 × 11 × 195973
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21557030
Product of the distinct prime numbers
The prime factorization of 21557030 is 2 × 5 × 11 × 195973.
Since it has a total of 4 prime factors.
4 , 8 , 6 , 51 , 115 , 253 , 7832 , 4789 , 40653 , 21316 , 629435 , 363317 , 2130369 , 8881528 , 95668487 , 89408126 , 911095852 , 961540289 , 4343241397 , 6089630148
n×2
43114060
n×3
64671090
n×4
86228120
n×5
107785150
n÷2
10778515
n÷3
7185676.6666667
n÷3
5389257.5
n÷5
4311406
n2
464705542420900
n3
1.0017671319134E+22
n4
2.159512411567E+29
n5
4.6552673841523E+36
2 √n
4642.9548780922
3 √n
278.31053235318
4 √n
68.139231563705
5 √n
29.289893005089
1 , 2 , 5 , 10 , 11 , 22 , 55 , 110 , 195973 , 391946 , 979865 , 1959730 , 2155703 , 4311406 , 10778515 , 21557030
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
-21557029
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 21557030 can be divided by 16 positive divisors.
The sum of these divisors (counting 21557030) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001110111100100110
3
Ternary
1111120012200112
4
Quaternary
1102032330212
5
Quinary
21004311110
6
Senary
2050013022
8
Octal
122167446
10
Decimal
21557030
12
Duodecimal
7277172
16
Hexadecimal
148ef26
20
Vigesimal
6eecba
36
Base36
cu1ie
md5
6c2f88a82f83a16ab716843d70d98e18
sha1
3d73eac6013632c713e71bfb3ebb1e75229f0600
sha256
d4618ff0f7d866846bc39a7f746893505f3e8bc8b20c397ff04b1f1081a31e32
sha512
f7439d71f7e56f83b65e82923a4c4b3c1076569149f722ada948cb58d1e73e5e81b17b4d30796a780d95c5c280a343a0f0630d8a9d798b31f39cf2e8eba2ca33
ripemd-160
c1d577efa8f087d4af7066d7c1762c43859f1f52
Diameter
43114060
Circumference
135446814.16243
Area
1.459915518152E+15
Volume
4.1961923496356E+22
Surface area
5.8396620726078E+15
Circumference
135446814.16243
Perimeter
86228120
Area
464705542420900
Diagonal
30486244.190484
Surface area
2788233254525400
Volume
1.0017671319134E+22
Space diagonal
37337871.220287
Perimeter
64671090
Area
2.0122340250796E+14
Altitude
18668935.610143
Surface area
2.0122340250796E+14
Volume
1.1805938869096E+21
Height
10162081.396828