21568481 is an odd 8-digits composite number following 21568480
and preceding 21568482 . In scientific notation, it is written as 2.1568481 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 19607700 positive integers (up to 21568481) that are relatively prime to 21568481.
21568481 has 4 divisors, whose sum is 23529264
The reverse of 21568481 is 18486512
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million five hundred sixty-eight thousand four hundred eighty-one
Scientific notation
2.1568481 × 10^7
Engineering notation
2.1568481 × 10^6
Prime Factorization
11 × 1960771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21568481
Product of the distinct prime numbers
The prime factorization of 21568481 is 11 × 1960771.
Since it has a total of 2 prime factors.
2 , 6 , 55 , 17 , 534 , 869 , 6994 , 325 , 98542 , 41236 , 853681 , 314057 , 7339825 , 8788711 , 29480731 , 75090111 , 172135450 , 769241797 , 1399764735 , 1902210790
n×2
43136962
n×3
64705443
n×4
86273924
n×5
107842405
n÷2
10784240.5
n÷3
7189493.6666667
n÷3
5392120.25
n÷5
4313696.2
n2
465199372647361
n3
1.0033643830157E+22
n4
2.164104563115E+29
n5
4.6676448151559E+36
2 √n
4644.1878730301
3 √n
278.35980274243
4 √n
68.148278577159
5 √n
29.293004076722
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
-21568480
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 21568481 can be divided by 4 positive divisors.
The sum of these divisors (counting 21568481) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010010001101111100001
3
Ternary
1111120210101122
4
Quaternary
1102101233201
5
Quinary
21010142411
6
Senary
2050142025
8
Octal
122215741
10
Decimal
21568481
12
Duodecimal
7281915
16
Hexadecimal
1491be1
20
Vigesimal
6eg141
36
Base36
cuach
md5
6257cee3d218bdb61a97e3c382508d26
sha1
3a7541dc1020451b20ebd9a5abd8552747f1b796
sha256
7fc8c7f4a30782d2bb7e617c8a360d211317004f7ac8d44db5b10ef94f728c74
sha512
bb19568e01f6ef96655a83c01b209ab26e505ad31bc389ad95964db51c60e51c98f71bc95548d49a9d01306c6976d9f3260f757f52ea323729ec60a3f2193d99
ripemd-160
7497104d50e31c7eeee861a71d4e0ede7c8cd714
Diameter
43136962
Circumference
135518762.91738
Area
1.4614669315635E+15
Volume
4.2028828994075E+22
Surface area
5.8458677262541E+15
Circumference
135518762.91738
Perimeter
86273924
Area
465199372647361
Diagonal
30502438.349986
Surface area
2791196235884166
Volume
1.0033643830157E+22
Space diagonal
37357704.934084
Perimeter
64705443
Area
2.014372372686E+14
Altitude
18678852.467042
Surface area
2.014372372686E+14
Volume
1.1824762653857E+21
Height
10167479.449995