71391 (number)

71391 is an odd 5-digits composite number following 71390 and preceding 71392. In scientific notation, it is written as 7.1391 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 46592 positive integers (up to 71391) that are relatively prime to 71391.

Interesting facts

Basic properties

Name

Name seventy-one thousand three hundred ninety-one

Notation

Scientific notation 7.1391 × 10^4
Engineering notation 7.1391 × 10^3

Prime Factorization of 71391

Prime Factorization 3 × 53 × 449

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 71391
Product of the distinct prime numbers

The prime factorization of 71391 is 3 × 53 × 449. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 49, 16, 684, 869, 3746, 5895, 16246, 43301, 213073, 500448, 8544243, 3019818, 26635344, 99782924, 150031210, 996794144, 155443494, 2438505543

Basic calculations (n = 71391)

Multiplication

n×y
n×2 142782
n×3 214173
n×4 285564
n×5 356955

Division

n÷y
n÷2 35695.5
n÷3 23797
n÷3 17847.75
n÷5 14278.2

Exponentiation

ny
n2 5096674881
n3 363856716429471
n4 2.5976094842616E+19
n5 1.8544593869092E+24

Nth Root

y√n
2√n 267.19094296027
3√n 41.484050579813
4√n 16.345976353839
5√n 9.3482150187737

Divisors of 71391

1, 3, 53, 159, 449, 1347, 23797, 71391

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 -71390
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 71391 can be divided by 8 positive divisors. The sum of these divisors (counting 71391) is 1, the average is 0.125.

Base conversion 71391

Base System Value
2 Binary 10001011011011111
3 Ternary 10121221010
4 Quaternary 101123133
5 Quinary 4241031
6 Senary 1310303
8 Octal 213337
10 Decimal 71391
12 Duodecimal 35393
16 Hexadecimal 116df
20 Vigesimal 8i9b
36 Base36 1j33

Cryptographic Hash Functions

md5 a1e03233ce8d74e3968903ac01270292
sha1 7438ea762d511b6ef8924c21608c9d4ef67f4f68
sha256 5558258d8f27e1c2cc728e91e202a931042db64ea1229b94b1a61736be27984b
sha512 8755b1b83270a5129054ce8c7d0244b11b20f5297ed3645c8673f63eb38c32e994cc808e7651df8246d85cb9787899de7c22641abfb72dc952dd834e2bceb01b
ripemd-160 987f518af33c8ed2f3cd61290c7d74e68d9dd7f0

71391 as geometric shapes

Circle

Radius = n
Diameter 142782
Circumference 448562.88226486
Area 16011676363.885

Sphere

Radius = n
Volume 1.5241194497255E+15
Surface area 64046705455.541
Circumference 448562.88226486

Square

Length = n
Perimeter 285564
Area 5096674881
Diagonal 100962.12043138

Cube

Length = n
Surface area 30580049286
Volume 363856716429471
Space diagonal 123652.83920315

Equilateral Triangle

Length = n
Perimeter 214173
Area 2206924960.888
Altitude 61826.419601575

Triangular Pyramid

Length = n
Surface area 2206924960.888
Volume 42880925261258
Height 33654.040143793