21887766 is an even 8-digits composite number following 21887765
and preceding 21887767 . In scientific notation, it is written as 2.1887766 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 6978312 positive integers (up to 21887766) that are relatively prime to 21887766.
21887766 has 16 divisors, whose sum is 35529984
The reverse of 21887766 is 66778812
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million eight hundred eighty-seven thousand seven hundred sixty-six
Scientific notation
2.1887766 × 10^7
Engineering notation
2.1887766 × 10^6
Prime Factorization
2 × 27 × 23 × 17623
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21887766
Product of the distinct prime numbers
The prime factorization of 21887766 is 2 × 27 × 23 × 17623.
Since it has a total of 4 prime factors.
9 , 4 , 17 , 80 , 77 , 12 , 3865 , 8989 , 47601 , 38027 , 886581 , 295996 , 3391659 , 519378 , 63225632 , 63310228 , 386374206 , 419440750 , 2189182373 , 7762596586
n×2
43775532
n×3
65663298
n×4
87551064
n×5
109438830
n÷2
10943883
n÷3
7295922
n÷3
5471941.5
n÷5
4377553.2
n2
479074300470756
n3
1.0485866185318E+22
n4
2.2951218537154E+29
n5
5.023509007561E+36
2 √n
4678.4362772191
3 √n
279.72662944729
4 √n
68.399095587728
5 √n
29.379221762483
1 , 2 , 23 , 27 , 46 , 54 , 621 , 1242 , 17623 , 35246 , 405329 , 475821 , 810658 , 951642 , 10943883 , 21887766
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
-21887765
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 21887766 can be divided by 16 positive divisors.
The sum of these divisors (counting 21887766) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011011111101100010110
3
Ternary
1112012000101000
4
Quaternary
1103133230112
5
Quinary
21100402031
6
Senary
2101044130
8
Octal
123375426
10
Decimal
21887766
12
Duodecimal
73b6646
16
Hexadecimal
14dfb16
20
Vigesimal
6gfj86
36
Base36
d14pi
md5
919f07d13465242eb7efdef2bf7a5402
sha1
5c2f76a737d573bc2c1149acd7e0371699513983
sha256
4f9012151711cd3c4caac038b412087e5bf953c857c8848f72df9f631389ce68
sha512
6badd5f3ece25d28e7a3e42c2b6cd7ad86235235e9aaf063f881c83ff05fdfbaa7b458cf0d3aaa3e4519ee2619226a9300312f3ddb0e3607d84950930c61087c
ripemd-160
796d170095d0f4ca93fcfbb6f6ad071b7c529058
Diameter
43775532
Circumference
137524889.73818
Area
1.5050563028826E+15
Volume
4.3923093565759E+22
Surface area
6.0202252115304E+15
Circumference
137524889.73818
Perimeter
87551064
Area
479074300470756
Diagonal
30953975.527249
Surface area
2874445802824536
Volume
1.0485866185318E+22
Space diagonal
37910722.776179
Perimeter
65663298
Area
2.0744525725397E+14
Altitude
18955361.388089
Surface area
2.0744525725397E+14
Volume
1.2357711810421E+21
Height
10317991.842416