21587797 is an odd 8-digits composite number following 21587796
and preceding 21587798 . In scientific notation, it is written as 2.1587797 × 10^7.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 16758000 positive integers (up to 21587797) that are relatively prime to 21587797.
21587797 has 16 divisors, whose sum is 27016704
The reverse of 21587797 is 79778512
Previous prime number is 491
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-one million five hundred eighty-seven thousand seven hundred ninety-seven
Scientific notation
2.1587797 × 10^7
Engineering notation
2.1587797 × 10^6
Prime Factorization
11 × 7 × 491 × 571
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21587797
Product of the distinct prime numbers
The prime factorization of 21587797 is 11 × 7 × 491 × 571.
Since it has a total of 4 prime factors.
6 , 10 , 68 , 43 , 139 , 67 , 826 , 7192 , 80509 , 7514 , 114088 , 366140 , 8411089 , 5624706 , 96046593 , 54980465 , 137070988 , 796050508 , 4137670107 , 7052611812
n×2
43175594
n×3
64763391
n×4
86351188
n×5
107938985
n÷2
10793898.5
n÷3
7195932.3333333
n÷3
5396949.25
n÷5
4317559.4
n2
466032979313209
n3
1.0060625352719E+22
n4
2.1718673780755E+29
n5
4.6885832068815E+36
2 √n
4646.2669962024
3 √n
278.44287448116
4 √n
68.163531277381
5 √n
29.298248962373
1 , 7 , 11 , 77 , 491 , 571 , 3437 , 3997 , 5401 , 6281 , 37807 , 43967 , 280361 , 1962527 , 3083971 , 21587797
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
-21587796
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 21587797 can be divided by 16 positive divisors.
The sum of these divisors (counting 21587797) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010010110011101010101
3
Ternary
1111121202220001
4
Quaternary
1102112131111
5
Quinary
21011302142
6
Senary
2050411301
8
Octal
122263525
10
Decimal
21587797
12
Duodecimal
7290b31
16
Hexadecimal
1496755
20
Vigesimal
6ei99h
36
Base36
cup91
md5
40a6bf75e3cdced8777ee695fc82a5cd
sha1
2c24f8d2b4dab3807ba86def2dc02cc5df7d998c
sha256
b069fe1e0887af7787b903355ee13a6f1d88720b0762a31782f9d0e541ce3cc3
sha512
4eb69022abcae38eac998b77bfa9569d97bcc48773337c79cb4fc618bd51ec2e6aafa61c8f915bd75ff514ba6792d2d42b085e8318473eb38931808e315b7566
ripemd-160
9f9ac01cfe1973ce0e21a59a023f0d686a65ad60
Diameter
43175594
Circumference
135640128.92478
Area
1.4640857841409E+15
Volume
4.2141848931494E+22
Surface area
5.8563431365638E+15
Circumference
135640128.92478
Perimeter
86351188
Area
466032979313209
Diagonal
30529755.299157
Surface area
2796197875879254
Volume
1.0060625352719E+22
Space diagonal
37391161.227483
Perimeter
64763391
Area
2.0179819954329E+14
Altitude
18695580.613741
Surface area
2.0179819954329E+14
Volume
1.1856560683141E+21
Height
10176585.099719