71985 is an odd 5-digits composite number following 71984
and preceding 71986 . In scientific notation, it is written as 7.1985 × 10^4.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 38384 positive integers (up to 71985) that are relatively prime to 71985.
71985 has 8 divisors, whose sum is 115200
The reverse of 71985 is 58917
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 30
Digital Root 3
Name
seventy-one thousand nine hundred eighty-five
Scientific notation
7.1985 × 10^4
Engineering notation
7.1985 × 10^3
Prime Factorization
3 × 5 × 4799
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71985
Product of the distinct prime numbers
The prime factorization of 71985 is 3 × 5 × 4799.
Since it has a total of 3 prime factors.
2 , 6 , 44 , 80 , 416 , 886 , 7711 , 78 , 70682 , 14873 , 617799 , 195015 , 7890128 , 2897398 , 78304799 , 95470192 , 330521054 , 32275197 , 3271560072 , 2174637695
n×2
143970
n×3
215955
n×4
287940
n×5
359925
n÷2
35992.5
n÷3
23995
n÷3
17996.25
n÷5
14397
n2
5181840225
n3
373014768596625
n4
2.6851468117428E+19
n5
1.9329029324331E+24
2 √n
268.30020499433
3 √n
41.59878725508
4 √n
16.379871946823
5 √n
9.3637196363307
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
-71984
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 71985 can be divided by 8 positive divisors.
The sum of these divisors (counting 71985) is 1, the average is 0.125.
Base
System
Value
2
Binary
10001100100110001
3
Ternary
10122202010
4
Quaternary
101210301
5
Quinary
4300420
6
Senary
1313133
8
Octal
214461
10
Decimal
71985
12
Duodecimal
357a9
16
Hexadecimal
11931
20
Vigesimal
8jj5
36
Base36
1jjl
md5
59c32bd4fc9b75e19a9006c707e69b39
sha1
bae6da0e144d10db9afc7d8f5ce217c22d884b23
sha256
ae070be23ddeb91b3a9b9a170c7cddecfd3411bac0d78dd8fe931e209dfa1bb2
sha512
545e480254cc7c07339d03ba2d2fadf29319630cf0bf83b234ea08bf9c44dee024ec1020fe8da0f4fb6f56fc6031fff1dd35ec20538669dc945dc37c5f433d9e
ripemd-160
cee38bef029b22c89e72c0f0f46996599e0ff6d6
Diameter
143970
Circumference
452295.09433732
Area
16279231182.936
Volume
1.5624806089382E+15
Surface area
65116924731.744
Circumference
452295.09433732
Perimeter
287940
Area
5181840225
Diagonal
101802.16328743
Surface area
31091041350
Volume
373014768596625
Space diagonal
124681.67738285
Perimeter
215955
Area
2243802636.601
Altitude
62340.838691423
Surface area
2243802636.601
Volume
43960212059567
Height
33934.054429142