81389319 (number)

81389319 is an odd 8-digits composite number following 81389318 and preceding 81389320. In scientific notation, it is written as 8.1389319 × 10^7. The sum of its digits is 42. It has a total of 7 prime factors and 40 positive divisors. There are 45999360 positive integers (up to 81389319) that are relatively prime to 81389319.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred eighty-nine thousand three hundred nineteen

Notation

Scientific notation 8.1389319 × 10^7
Engineering notation 8.1389319 × 10^6

Prime Factorization of 81389319

Prime Factorization 3 × 11 × 11 × 11 × 109 × 11 × 17

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 61149
Product of the distinct prime numbers

The prime factorization of 81389319 is 3 × 11 × 11 × 11 × 109 × 11 × 17. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81389319)

Multiplication

n×y
n×2 162778638
n×3 244167957
n×4 325557276
n×5 406946595

Division

n÷y
n÷2 40694659.5
n÷3 27129773
n÷3 20347329.75
n÷5 16277863.8

Exponentiation

ny
n2 6624221247283761
n3 5.3914085622176E+23
n4 4.3880307132966E+31
n5 3.5713883150629E+39

Nth Root

y√n
2√n 9021.6029063576
3√n 433.36696734334
4√n 94.982118876963
5√n 38.204408748956

Divisors of 81389319

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81389318
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81389319 can be divided by 40 positive divisors. The sum of these divisors (counting 81389319) is 1, the average is 0.025.

Base conversion 81389319

Base System Value
2 Binary 100110110011110011100000111
3 Ternary 12200011000011020
4 Quaternary 10312132130013
5 Quinary 131313424234
6 Senary 12024242223
8 Octal 466363407
10 Decimal 81389319
12 Duodecimal 23310373
16 Hexadecimal 4d9e707
20 Vigesimal 158dd5j
36 Base36 1cggef

Cryptographic Hash Functions

md5 dfd98321c2dfb46eac5a596529e115f1
sha1 826376dfe78b7f81a61a8b0770cba466e3d18ea1
sha256 7d5e1938d5bfb3c4240ccb36f5998ebcf26b8188ed9eb1b568f61b2279dfd368
sha512 a535180d4662ea0f2e853048a04786157d04a78b0d53427d921337c4101ae8ff2a3fe5c9a9483fb9c660f3d6ecfa65855adb94526d4458d919fa95878c67aafc
ripemd-160 f8af381ec439570221626c1cd8d5834097def15c

81389319 as geometric shapes

Circle

Radius = n
Diameter 162778638
Circumference 511384173.30215
Area 2.081060480622E+16

Sphere

Radius = n
Volume 2.2583479375418E+24
Surface area 8.324241922488E+16
Circumference 511384173.30215

Square

Length = n
Perimeter 325557276
Area 6624221247283761
Diagonal 115101878.76211

Cube

Length = n
Surface area 39745327483702566
Volume 5.3914085622176E+23
Space diagonal 140970435.70143

Equilateral Triangle

Length = n
Perimeter 244167957
Area 2.8683719402182E+15
Altitude 70485217.850715

Triangular Pyramid

Length = n
Surface area 2.8683719402182E+15
Volume 6.3538359241521E+22
Height 38367292.920703