21087973 is an odd 8-digits composite number following 21087972
and preceding 21087974 . In scientific notation, it is written as 2.1087973 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 19750080 positive integers (up to 21087973) that are relatively prime to 21087973.
21087973 has 8 divisors, whose sum is 22438080
The reverse of 21087973 is 37978012
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million eighty-seven thousand nine hundred seventy-three
Scientific notation
2.1087973 × 10^7
Engineering notation
2.1087973 × 10^6
Prime Factorization
17 × 211 × 5879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21087973
Product of the distinct prime numbers
The prime factorization of 21087973 is 17 × 211 × 5879.
Since it has a total of 3 prime factors.
7 , 10 , 99 , 47 , 791 , 120 , 2042 , 9279 , 67315 , 2458 , 676266 , 985492 , 8856838 , 6118369 , 76962144 , 85342404 , 158874121 , 876913686 , 7475161938 , 44825836
n×2
42175946
n×3
63263919
n×4
84351892
n×5
105439865
n÷2
10543986.5
n÷3
7029324.3333333
n÷3
5271993.25
n÷5
4217594.6
n2
444702605248729
n3
9.3778765325149E+21
n4
1.9776040711501E+29
n5
4.1703661257103E+36
2 √n
4592.1643045518
3 √n
276.27713621353
4 √n
67.765509697425
5 √n
29.161305815392
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
-21087972
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 21087973 can be divided by 8 positive divisors.
The sum of these divisors (counting 21087973) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100011011100101
3
Ternary
1110200101021001
4
Quaternary
1100130123211
5
Quinary
20344303343
6
Senary
2031553301
8
Octal
120343345
10
Decimal
21087973
12
Duodecimal
708b831
16
Hexadecimal
141c6e5
20
Vigesimal
6bfjid
36
Base36
cjzl1
md5
97eab1bedab44d645e1dfb6073ba6e55
sha1
0327d9c8f1e879271fb149338cc989bdf6603899
sha256
007b464ad865a08505d2e8514fdf7c668abd09f092b7c4e967496fd35fc21410
sha512
47c8eb6dca6f2db9e182eb73cbba6f332c7e2f4866e330f5d1987a8fd698ccc2a8b39118b4df7678148c216b2d4ceefc0fe58cbd8fb663d902f1e3eb88f9b053
ripemd-160
093eb9b7a99b633ba45e2346ca105c413701d491
Diameter
42175946
Circumference
132499642.1118
Area
1.3970744376816E+15
Volume
3.9281957361094E+22
Surface area
5.5882977507266E+15
Circumference
132499642.1118
Perimeter
84351892
Area
444702605248729
Diagonal
29822897.419558
Surface area
2668215631492374
Volume
9.3778765325149E+21
Space diagonal
36525440.664641
Perimeter
63263919
Area
1.9256187663726E+14
Altitude
18262720.33232
Surface area
1.9256187663726E+14
Volume
1.1051933482119E+21
Height
9940965.8065192