21356571 is an odd 8-digits composite number following 21356570
and preceding 21356572 . In scientific notation, it is written as 2.1356571 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14237712 positive integers (up to 21356571) that are relatively prime to 21356571.
21356571 has 4 divisors, whose sum is 28475432
The reverse of 21356571 is 17565312
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million three hundred fifty-six thousand five hundred seventy-one
Scientific notation
2.1356571 × 10^7
Engineering notation
2.1356571 × 10^6
Prime Factorization
3 × 7118857
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21356571
Product of the distinct prime numbers
The prime factorization of 21356571 is 3 × 7118857.
Since it has a total of 2 prime factors.
8 , 9 , 75 , 86 , 990 , 86 , 9525 , 6127 , 17054 , 10075 , 900025 , 788479 , 2735488 , 5427145 , 69543549 , 54494359 , 240568482 , 158553617 , 9987318590 , 9058152205
n×2
42713142
n×3
64069713
n×4
85426284
n×5
106782855
n÷2
10678285.5
n÷3
7118857
n÷3
5339142.75
n÷5
4271314.2
n2
456103124878041
n3
9.7407987697797E+21
n4
2.0803006052351E+29
n5
4.4428087577047E+36
2 √n
4621.3170200712
3 √n
277.44517381271
4 √n
67.980269343915
5 √n
29.235215856386
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21356570
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21356571 can be divided by 4 positive divisors.
The sum of these divisors (counting 21356571) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001011110000000011011
3
Ternary
1111012000201010
4
Quaternary
1101132000123
5
Quinary
20431402241
6
Senary
2041425003
8
Octal
121360033
10
Decimal
21356571
12
Duodecimal
719b163
16
Hexadecimal
145e01b
20
Vigesimal
6d9b8b
36
Base36
cpqu3
md5
b2fa1f53c5aa7d4baf846ab422ff9c0e
sha1
ea857be2b603ba6806cabad9ed617715deea38e4
sha256
bf23adaa6fed103b24f19f9d398d143bd9b1b0b04ee8305e259cd08dab8c91c6
sha512
a1a6675d87e2d2b2a9704a9bbad2fc36daa6ea790172a87584a14a7702a7c7a6a45ff82fda8e61b9b33c6be75dc2ea23a032cf3bbd583024a71a0e88c71c9bb2
ripemd-160
1f261ba652a8ef32ff99514a4090666068c85ba7
Diameter
42713142
Circumference
134187293.11894
Area
1.4328902263962E+15
Volume
4.0802162473649E+22
Surface area
5.7315609055848E+15
Circumference
134187293.11894
Perimeter
85426284
Area
456103124878041
Diagonal
30202752.353984
Surface area
2736618749268246
Volume
9.7407987697797E+21
Space diagonal
36990666.047452
Perimeter
64069713
Area
1.9749844644492E+14
Altitude
18495333.023726
Surface area
1.9749844644492E+14
Volume
1.1479641440475E+21
Height
10067584.117995