21568641 is an odd 8-digits composite number following 21568640
and preceding 21568642 . In scientific notation, it is written as 2.1568641 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13753872 positive integers (up to 21568641) that are relatively prime to 21568641.
21568641 has 8 divisors, whose sum is 30008640
The reverse of 21568641 is 14686512
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred sixty-eight thousand six hundred forty-one
Scientific notation
2.1568641 × 10^7
Engineering notation
2.1568641 × 10^6
Prime Factorization
3 × 23 × 312589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21568641
Product of the distinct prime numbers
The prime factorization of 21568641 is 3 × 23 × 312589.
Since it has a total of 3 prime factors.
4 , 2 , 21 , 15 , 402 , 86 , 1756 , 6806 , 7921 , 3649 , 217852 , 984717 , 601073 , 321942 , 81932020 , 96561633 , 634169592 , 975544230 , 5476060114 , 1785067886
n×2
43137282
n×3
64705923
n×4
86274564
n×5
107843205
n÷2
10784320.5
n÷3
7189547
n÷3
5392160.25
n÷5
4313728.2
n2
465206274586881
n3
1.0033867127512E+22
n4
2.16416877915E+29
n5
4.6678179460896E+36
2 √n
4644.2050988302
3 √n
278.36049105328
4 √n
68.148404961746
5 √n
29.293047537054
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21568640
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21568641 can be divided by 8 positive divisors.
The sum of these divisors (counting 21568641) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010010001110010000001
3
Ternary
1111120210121120
4
Quaternary
1102101302001
5
Quinary
21010144031
6
Senary
2050142453
8
Octal
122216201
10
Decimal
21568641
12
Duodecimal
7281a29
16
Hexadecimal
1491c81
20
Vigesimal
6eg1c1
36
Base36
cuagx
md5
26858296d4ec0ec9a75fa878287c030e
sha1
5197e728f2d95661ce9ac13e180d09794f5ec3be
sha256
0a762eccbbd3e8d803d2c6bb5a0688e61cabeedc3dd51ba1c147a95d309f6b7c
sha512
aadce6e02de60f33c3f3cd8749b93939b4e1a54cd281c25b550142afd16a3aa458c0e1a508f536e363ff6c1d60f1a27ac9df14f7b816dc5ea956841ace49f2df
ripemd-160
49c34406892cdcece3ae089f25785d924db99a80
Diameter
43137282
Circumference
135519768.22703
Area
1.461488614646E+15
Volume
4.202976433985E+22
Surface area
5.8459544585841E+15
Circumference
135519768.22703
Perimeter
86274564
Area
465206274586881
Diagonal
30502664.624156
Surface area
2791237647521286
Volume
1.0033867127512E+22
Space diagonal
37357982.062213
Perimeter
64705923
Area
2.0144022589608E+14
Altitude
18678991.031107
Surface area
2.0144022589608E+14
Volume
1.1825025812314E+21
Height
10167554.874719