21542085 is an odd 8-digits composite number following 21542084
and preceding 21542086 . In scientific notation, it is written as 2.1542085 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 11489040 positive integers (up to 21542085) that are relatively prime to 21542085.
21542085 has 4 divisors, whose sum is 21701792
The reverse of 21542085 is 58024512
Previous prime number is 135
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million five hundred forty-two thousand eighty-five
Scientific notation
2.1542085 × 10^7
Engineering notation
2.1542085 × 10^6
Prime Factorization
135 × 159571
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21542085
Product of the distinct prime numbers
The prime factorization of 21542085 is 135 × 159571.
Since it has a total of 2 prime factors.
8 , 3 , 9 , 74 , 15 , 285 , 2482 , 9635 , 61556 , 28530 , 780234 , 575945 , 8308083 , 5031037 , 50403972 , 61798408 , 810787282 , 130711947 , 7710314165 , 9077478400
n×2
43084170
n×3
64626255
n×4
86168340
n×5
107710425
n÷2
10771042.5
n÷3
7180695
n÷3
5385521.25
n÷5
4308417
n2
464061426147225
n3
9.9968506872847E+21
n4
2.153530072378E+29
n5
4.6391527869222E+36
2 √n
4641.3451713916
3 √n
278.24620202458
4 √n
68.127418646178
5 √n
29.285830674695
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
-21542084
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 21542085 can be divided by 4 positive divisors.
The sum of these divisors (counting 21542085) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011010011000101
3
Ternary
1111112110012000
4
Quaternary
1102023103011
5
Quinary
21003321320
6
Senary
2045415513
8
Octal
122132305
10
Decimal
21542085
12
Duodecimal
726a599
16
Hexadecimal
148b4c5
20
Vigesimal
6ecf45
36
Base36
ctpz9
md5
dbab101f57a1f03b9ef01507701c579f
sha1
c24ae64d85b4fd2cadd1fef6f0896dffde68642f
sha256
7b0ef8279832e90bb64cd8c548e55d5f6a8259027f551b34bb79dff15b2685e0
sha512
a62cd22c42d14975e5b6adbe758b03bfa4f3bb47056714c65b53a0382f02b268ce49be4d5b217acf99b15c7e5b54c5cf39726a29e719b782c3ea4bf900843f40
ripemd-160
00657f7e9c910300c925352d6826c2bf862e412e
Diameter
43084170
Circumference
135352911.95801
Area
1.4578919671985E+15
Volume
4.187471023761E+22
Surface area
5.8315678687941E+15
Circumference
135352911.95801
Perimeter
86168340
Area
464061426147225
Diagonal
30465108.768794
Surface area
2784368556883350
Volume
9.9968506872847E+21
Space diagonal
37311985.720967
Perimeter
64626255
Area
2.0094449197997E+14
Altitude
18655992.860484
Surface area
2.0094449197997E+14
Volume
1.1781401519147E+21
Height
10155036.256265