85440 is an even 5-digits composite number following 85439
and preceding 85441 . In scientific notation, it is written as 8.5440 × 10^4.
The sum of its digits is 21. It has a total of 8 prime factors and 28 positive divisors.
There are 22528 positive integers (up to 85440) that are relatively prime to 85440.
85440 has 28 divisors, whose sum is 182880
The reverse of 85440 is 04458
Previous prime number is 15
Is Prime? no
Number parity even
Number length 5
Sum of Digits 21
Digital Root 3
Name
eighty-five thousand four hundred forty
Scientific notation
8.5440 × 10^4
Engineering notation
8.5440 × 10^3
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 15 × 89
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
2670
Product of the distinct prime numbers
The prime factorization of 85440 is 2 × 2 × 2 × 2 × 2 × 2 × 15 × 89.
Since it has a total of 8 prime factors.
7 , 1 , 20 , 17 , 336 , 823 , 2461 , 4355 , 21384 , 19829 , 190737 , 882401 , 843853 , 38951 , 50343933 , 11001174 , 442266809 , 722363134 , 1523167515 , 5498144456
n×2
170880
n×3
256320
n×4
341760
n×5
427200
n÷2
42720
n÷3
28480
n÷3
21360
n÷5
17088
n2
7299993600
n3
623711453184000
n4
5.3289906560041E+19
n5
4.5530896164899E+24
2 √n
292.30121450312
3 √n
44.044033054153
4 √n
17.096818841619
5 √n
9.6901890046744
1 , 2 , 4 , 8 , 15 , 16 , 30 , 32 , 60 , 64 , 89 , 120 , 178 , 240 , 356 , 480 , 712 , 960 , 1335 , 1424 , 2670 , 2848 , 5340 , 5696 , 10680 , 21360 , 42720 , 85440
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85439
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85440 can be divided by 28 positive divisors.
The sum of these divisors (counting 85440) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
10100110111000000
3
Ternary
11100012110
4
Quaternary
110313000
5
Quinary
10213230
6
Senary
1455320
8
Octal
246700
10
Decimal
85440
12
Duodecimal
41540
16
Hexadecimal
14dc0
20
Vigesimal
adc0
36
Base36
1txc
md5
42d1f7d9babc400bb7b0e1e0de4d336d
sha1
0aa36e5ebb561a7fc1cfaaa5fd15f24296464d7a
sha256
10a095021219ae387061ea4ceb5715d1ba1594b47ae6e403f1ce09c86f03a643
sha512
d01781c308267ddfb44a8348ea65bdbfc9ed66102273a4b450e0cb169bb0e2723e0e3672a7c894afa22295515b65bd305ffce0121895b203351401ecebc95d47
ripemd-160
1e8034af9da79875b2cbd83206281dffbd0370aa
Diameter
170880
Circumference
536835.35264542
Area
22933606265.013
Volume
2.6125964257102E+15
Surface area
91734425060.05
Circumference
536835.35264542
Perimeter
341760
Area
7299993600
Diagonal
120830.40676916
Surface area
43799961600
Volume
623711453184000
Space diagonal
147986.42099868
Perimeter
256320
Area
3160989952.5319
Altitude
73993.210499342
Surface area
3160989952.5319
Volume
73505099675020
Height
40276.802256386