21056871 is an odd 8-digits composite number following 21056870
and preceding 21056872 . In scientific notation, it is written as 2.1056871 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 12321120 positive integers (up to 21056871) that are relatively prime to 21056871.
21056871 has 4 divisors, whose sum is 21079832
The reverse of 21056871 is 17865012
Previous prime number is 957
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million fifty-six thousand eight hundred seventy-one
Scientific notation
2.1056871 × 10^7
Engineering notation
2.1056871 × 10^6
Prime Factorization
957 × 22003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21056871
Product of the distinct prime numbers
The prime factorization of 21056871 is 957 × 22003.
Since it has a total of 2 prime factors.
5 , 7 , 83 , 50 , 503 , 502 , 5448 , 4408 , 19289 , 49269 , 979353 , 885028 , 2675233 , 3408318 , 45320523 , 62090304 , 752645253 , 296527052 , 3276270890 , 3223455267
n×2
42113742
n×3
63170613
n×4
84227484
n×5
105284355
n÷2
10528435.5
n÷3
7018957
n÷3
5264217.75
n÷5
4211374.2
n2
443391816310641
n3
9.3364442785089E+21
n4
1.9659630277125E+29
n5
4.1397029865311E+36
2 √n
4588.7766343547
3 √n
276.14124517965
4 √n
67.740509551927
5 √n
29.152698914433
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
-21056870
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 21056871 can be divided by 4 positive divisors.
The sum of these divisors (counting 21056871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010100110101100111
3
Ternary
1110121210121010
4
Quaternary
1100110311213
5
Quinary
20342304441
6
Senary
2031153303
8
Octal
120246547
10
Decimal
21056871
12
Duodecimal
7075833
16
Hexadecimal
1414d67
20
Vigesimal
6bc23b
36
Base36
cjbl3
md5
4839e880fe63a05eae51a811e707973c
sha1
ca4559c54f067e5b41cec96fcdea862fa5bebcea
sha256
e5fd075af5c1045456c3632560fd8bdc75e2fd2cc38505df093dc7556fd53637
sha512
44655fce6eca53b6d063cf67c6e5dda87c6ec93c6d865fa126d80837795e75af4cf01430540044614093d2185386e2cb9fdc428a3db99c07e7467daa6a69430f
ripemd-160
3e7028a71afa45579d341ae762d35b8f997b63c0
Diameter
42113742
Circumference
132304222.48238
Area
1.3929564727833E+15
Volume
3.9108406341352E+22
Surface area
5.5718258911334E+15
Circumference
132304222.48238
Perimeter
84227484
Area
443391816310641
Diagonal
29778912.549341
Surface area
2660350897863846
Volume
9.3364442785089E+21
Space diagonal
36471570.420424
Perimeter
63170613
Area
1.9199428837757E+14
Altitude
18235785.210212
Surface area
1.9199428837757E+14
Volume
1.1003105102507E+21
Height
9926304.1831136