21082585 is an odd 8-digits composite number following 21082584
and preceding 21082586 . In scientific notation, it is written as 2.1082585 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 16866064 positive integers (up to 21082585) that are relatively prime to 21082585.
21082585 has 4 divisors, whose sum is 25299108
The reverse of 21082585 is 58528012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million eighty-two thousand five hundred eighty-five
Scientific notation
2.1082585 × 10^7
Engineering notation
2.1082585 × 10^6
Prime Factorization
5 × 4216517
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21082585
Product of the distinct prime numbers
The prime factorization of 21082585 is 5 × 4216517.
Since it has a total of 2 prime factors.
3 , 3 , 29 , 72 , 979 , 870 , 831 , 3591 , 39225 , 75272 , 932299 , 129568 , 3714354 , 944367 , 34820744 , 73862599 , 40911368 , 917028528 , 2167272153 , 6677874530
n×2
42165170
n×3
63247755
n×4
84330340
n×5
105412925
n÷2
10541292.5
n÷3
7027528.3333333
n÷3
5270646.25
n÷5
4216517
n2
444475390282225
n3
9.3706901960332E+21
n4
1.9755837256654E+29
n5
4.1650411820957E+36
2 √n
4591.5776155914
3 √n
276.25360450652
4 √n
67.761180742306
5 √n
29.159815514014
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
-21082584
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 21082585 can be divided by 4 positive divisors.
The sum of these divisors (counting 21082585) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011011000111011001
3
Ternary
1110200002212111
4
Quaternary
1100123013121
5
Quinary
20344120320
6
Senary
2031512321
8
Octal
120330731
10
Decimal
21082585
12
Duodecimal
70886a1
16
Hexadecimal
141b1d9
20
Vigesimal
6bf695
36
Base36
cjvfd
md5
d2e751a2d634f51cfde3308712a3b26a
sha1
5af40dc98f44fa1102446db5b53c939cee3b358f
sha256
d4aaef7d7ec96e3ef2d88d5360399db902d0b3cfcb828ede634b35deed2cc80f
sha512
07a54d9804c910e9ed4d682ce7a65bad38ddcabf0b70e4738ff86f5e11bce5064fb3aa2c2380264c781f6e9f1d8a1d94c05d5e7580cc39dc1cfda89df189854b
ripemd-160
ef249848d8e094e4eafa13e8c6f16877a71531a9
Diameter
42165170
Circumference
132465788.30936
Area
1.3963606208121E+15
Volume
3.9251855305232E+22
Surface area
5.5854424832484E+15
Circumference
132465788.30936
Perimeter
84330340
Area
444475390282225
Diagonal
29815277.636884
Surface area
2666852341693350
Volume
9.3706901960332E+21
Space diagonal
36516108.37489
Perimeter
63247755
Area
1.924634896707E+14
Altitude
18258054.187445
Surface area
1.924634896707E+14
Volume
1.1043464303356E+21
Height
9938425.8789612