71985 (number)

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.

Interesting facts

Basic properties

Name

Name seventy-one thousand nine hundred eighty-five

Notation

Scientific notation 7.1985 × 10^4
Engineering notation 7.1985 × 10^3

Prime Factorization of 71985

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.

Most popular turbo-numbers

Basic calculations (n = 71985)

Multiplication

n×y
n×2 143970
n×3 215955
n×4 287940
n×5 359925

Division

n÷y
n÷2 35992.5
n÷3 23995
n÷3 17996.25
n÷5 14397

Exponentiation

ny
n2 5181840225
n3 373014768596625
n4 2.6851468117428E+19
n5 1.9329029324331E+24

Nth Root

y√n
2√n 268.30020499433
3√n 41.59878725508
4√n 16.379871946823
5√n 9.3637196363307

Divisors of 71985

1, 3, 5, 15, 4799, 14397, 23995, 71985

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 conversion 71985

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

Cryptographic Hash Functions

md5 59c32bd4fc9b75e19a9006c707e69b39
sha1 bae6da0e144d10db9afc7d8f5ce217c22d884b23
sha256 ae070be23ddeb91b3a9b9a170c7cddecfd3411bac0d78dd8fe931e209dfa1bb2
sha512 545e480254cc7c07339d03ba2d2fadf29319630cf0bf83b234ea08bf9c44dee024ec1020fe8da0f4fb6f56fc6031fff1dd35ec20538669dc945dc37c5f433d9e
ripemd-160 cee38bef029b22c89e72c0f0f46996599e0ff6d6

71985 as geometric shapes

Circle

Radius = n
Diameter 143970
Circumference 452295.09433732
Area 16279231182.936

Sphere

Radius = n
Volume 1.5624806089382E+15
Surface area 65116924731.744
Circumference 452295.09433732

Square

Length = n
Perimeter 287940
Area 5181840225
Diagonal 101802.16328743

Cube

Length = n
Surface area 31091041350
Volume 373014768596625
Space diagonal 124681.67738285

Equilateral Triangle

Length = n
Perimeter 215955
Area 2243802636.601
Altitude 62340.838691423

Triangular Pyramid

Length = n
Surface area 2243802636.601
Volume 43960212059567
Height 33934.054429142